Diradical
[医]双自由基, 双游离基
🗣️ 情景例句
How long are you going to stay here?
您在这里呆多久？
In college I majored in history, What was you major?
大学时我主修历史，你主修什么呢？
I was very glad when the boys won the relay race.
我非常高兴，男同学在接力赛中获胜。