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？
Study sickness while you are well.
居安思危。
He told him he had better return it or he would call the police.
告诉他最好把羊交还，否则就去叫警察。