Although, this process is very painful, wild goose the south fly to grind teeth to hold up.

虽然，这个过程非常痛苦，但雁南飞不得不咬牙支撑。

youdao

Although, this process is very painful, wild goose the south fly to grind teeth to hold up.

虽然，这个过程非常痛苦，但雁南飞不得不咬牙支撑。

youdao