Metaexpression
[计] 元表达式
🗣️ 情景例句
How long does your vacation last?
你的假期有多长？
He should have a long spoon that sups with the devil.
跟坏人打交道，要特别小心。
I want to improve, but I don't know how.
我想提高它，但又不知道怎么样才能提高。