🧩 词语组成解析
[医] 李属
🗣️ 情景例句
Do we have to pre-book tours, or can we get them on site?
我们必须预定行程， 还是到那个地方再说？
He hasn't done any worthwhile work in five years.
这五年来他没做过一件正经事。
Are you sure you don't mind?
你敢肯定你不会介意吗？