Dideoxy
双脱氧法
🗣️ 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。
Every heart has its own sorrow.
人人都有伤心处。
Don't worry. But you'd better take him to the nurse, and she'll give him some pills.
放心吧。你最好带他到护士那，她会给他一些药片的。