Tach
abbr. 环节（tache）；转速计（tachometer）
🗣️ 情景例句
Good morning, everyone!
各位早安！
You are bigger than I am.
你比我大
The city at one time must have been prosperous, for it enjoyed a high level of civilization.
这座古城肯定一度很繁荣，因为它曾享有高度的文明，