Hierarchy system
[计] 体系, 分级系统
🧩 词语组成解析
🗣️ 情景例句
Where's your grandson Robbie and his friend Alexandra?
你的孙子Robbie和他的朋友Alexandra呢？
He who lives in glass house should not throw stones.
正人先正己。
We mustn't waste any more time.
咱们不要再浪费时间了。