diff --git a/aerich/cli.py b/aerich/cli.py
index 772d37e..cfb56eb 100644
--- a/aerich/cli.py
+++ b/aerich/cli.py
@@ -37,7 +37,7 @@ async def cli(ctx: Context, config, app) -> None:
     if invoked_subcommand != "init":
         config_path = Path(config)
         if not config_path.exists():
-            raise UsageError("You must exec init first", ctx=ctx)
+            raise UsageError("You need to run `aerich init` first to create the config file.", ctx=ctx)
         content = config_path.read_text()
         doc: dict = tomlkit.parse(content)
         try:
@@ -46,7 +46,7 @@ async def cli(ctx: Context, config, app) -> None:
             tortoise_orm = tool["tortoise_orm"]
             src_folder = tool.get("src_folder", CONFIG_DEFAULT_VALUES["src_folder"])
         except NonExistentKey:
-            raise UsageError("You need run aerich init again when upgrade to 0.6.0+")
+            raise UsageError("You need run `aerich init` again when upgrading to aerich 0.6.0+.")
         add_src_path(src_folder)
         tortoise_config = get_tortoise_config(ctx, tortoise_orm)
         if not app:
@@ -56,29 +56,29 @@ async def cli(ctx: Context, config, app) -> None:
         ctx.obj["command"] = command
         if invoked_subcommand != "init-db":
             if not Path(location, app).exists():
-                raise UsageError("You must exec init-db first", ctx=ctx)
+                raise UsageError("You need to run `aerich init-db` first to initialize the database.", ctx=ctx)
             await command.init()
 
 
-@cli.command(help="Generate migrate changes file.")
-@click.option("--name", default="update", show_default=True, help="Migrate name.")
-@click.option("--empty", default=False, is_flag=True, help="Generate empty migration file.")
+@cli.command(help="Generate a migration file for the current state of the models.")
+@click.option("--name", default="update", show_default=True, help="Migration name.")
+@click.option("--empty", default=False, is_flag=True, help="Generate an empty migration file.")
 @click.pass_context
 async def migrate(ctx: Context, name, empty) -> None:
     command = ctx.obj["command"]
     ret = await command.migrate(name, empty)
     if not ret:
         return click.secho("No changes detected", fg=Color.yellow)
-    click.secho(f"Success migrate {ret}", fg=Color.green)
+    click.secho(f"Success creating migration file {ret}", fg=Color.green)
 
 
-@cli.command(help="Upgrade to specified version.")
+@cli.command(help="Upgrade to specified migration version.")
 @click.option(
     "--in-transaction",
     "-i",
     default=True,
     type=bool,
-    help="Make migrations in transaction or not. Can be helpful for large migrations or creating concurrent indexes.",
+    help="Make migrations in a single transaction or not. Can be helpful for large migrations or creating concurrent indexes.",
 )
 @click.pass_context
 async def upgrade(ctx: Context, in_transaction: bool) -> None:
@@ -88,7 +88,7 @@ async def upgrade(ctx: Context, in_transaction: bool) -> None:
         click.secho("No upgrade items found", fg=Color.yellow)
     else:
         for version_file in migrated:
-            click.secho(f"Success upgrade {version_file}", fg=Color.green)
+            click.secho(f"Success upgrading to {version_file}", fg=Color.green)
 
 
 @cli.command(help="Downgrade to specified version.")
@@ -97,8 +97,8 @@ async def upgrade(ctx: Context, in_transaction: bool) -> None:
     "--version",
     default=-1,
     type=int,
-    show_default=True,
-    help="Specified version, default to last.",
+    show_default=False,
+    help="Specified version, default to last migration.",
 )
 @click.option(
     "-d",
@@ -106,11 +106,11 @@ async def upgrade(ctx: Context, in_transaction: bool) -> None:
     is_flag=True,
     default=False,
     show_default=True,
-    help="Delete version files at the same time.",
+    help="Also delete the migration files.",
 )
 @click.pass_context
 @click.confirmation_option(
-    prompt="Downgrade is dangerous, which maybe lose your data, are you sure?",
+    prompt="Downgrade is dangerous: you might lose your data! Are you sure?",
 )
 async def downgrade(ctx: Context, version: int, delete: bool) -> None:
     command = ctx.obj["command"]
@@ -119,43 +119,43 @@ async def downgrade(ctx: Context, version: int, delete: bool) -> None:
     except DowngradeError as e:
         return click.secho(str(e), fg=Color.yellow)
     for file in files:
-        click.secho(f"Success downgrade {file}", fg=Color.green)
+        click.secho(f"Success downgrading to {file}", fg=Color.green)
 
 
-@cli.command(help="Show current available heads in migrate location.")
+@cli.command(help="Show currently available heads (unapplied migrations).")
 @click.pass_context
 async def heads(ctx: Context) -> None:
     command = ctx.obj["command"]
     head_list = await command.heads()
     if not head_list:
-        return click.secho("No available heads, try migrate first", fg=Color.green)
+        return click.secho("No available heads.", fg=Color.green)
     for version in head_list:
         click.secho(version, fg=Color.green)
 
 
-@cli.command(help="List all migrate items.")
+@cli.command(help="List all migrations.")
 @click.pass_context
 async def history(ctx: Context) -> None:
     command = ctx.obj["command"]
     versions = await command.history()
     if not versions:
-        return click.secho("No history, try migrate", fg=Color.green)
+        return click.secho("No migrations created yet.", fg=Color.green)
     for version in versions:
         click.secho(version, fg=Color.green)
 
 
-@cli.command(help="Init config file and generate root migrate location.")
+@cli.command(help="Initialize aerich config and create migrations folder.")
 @click.option(
     "-t",
     "--tortoise-orm",
     required=True,
-    help="Tortoise-ORM config module dict variable, like settings.TORTOISE_ORM.",
+    help="Tortoise-ORM config dict location, like `settings.TORTOISE_ORM`.",
 )
 @click.option(
     "--location",
     default="./migrations",
     show_default=True,
-    help="Migrate store location.",
+    help="Migrations folder.",
 )
 @click.option(
     "-s",
@@ -193,18 +193,18 @@ async def init(ctx: Context, tortoise_orm, location, src_folder) -> None:
 
     Path(location).mkdir(parents=True, exist_ok=True)
 
-    click.secho(f"Success create migrate location {location}", fg=Color.green)
-    click.secho(f"Success write config to {config_file}", fg=Color.green)
+    click.secho(f"Success creating migrations folder {location}", fg=Color.green)
+    click.secho(f"Success writing aerich config to {config_file}", fg=Color.green)
 
 
-@cli.command(help="Generate schema and generate app migrate location.")
+@cli.command(help="Generate schema and generate app migration folder.")
 @click.option(
     "-s",
     "--safe",
     type=bool,
     is_flag=True,
     default=True,
-    help="When set to true, creates the table only when it does not already exist.",
+    help="Create tables only when they do not already exist.",
     show_default=True,
 )
 @click.pass_context
@@ -214,15 +214,15 @@ async def init_db(ctx: Context, safe: bool) -> None:
     dirname = Path(command.location, app)
     try:
         await command.init_db(safe)
-        click.secho(f"Success create app migrate location {dirname}", fg=Color.green)
-        click.secho(f'Success generate schema for app "{app}"', fg=Color.green)
+        click.secho(f"Success creating app migration folder {dirname}", fg=Color.green)
+        click.secho(f'Success generating initial migration file for app "{app}"', fg=Color.green)
     except FileExistsError:
         return click.secho(
-            f"Inited {app} already, or delete {dirname} and try again.", fg=Color.yellow
+            f"App {app} is already initialized. Delete {dirname} and try again.", fg=Color.yellow
         )
 
 
-@cli.command(help="Introspects the database tables to standard output as TortoiseORM model.")
+@cli.command(help="Prints the current database tables to stdout as Tortoise-ORM models.")
 @click.option(
     "-t",
     "--table",