Clonotype
纯系型
🗣️ 情景例句
Sure. Oh, sorry, Mary, I'd better go now.
可以。哦，抱歉，Mary，我要挂电话了。
You were late again this morning. I think you had better start being on time.
你早晨又迟到了，我想你最好开始守时。[托福]
When did you go home then?
那么你什么时候才回家呢？