Biconditional operation
[计] 同操作, 双态操作
🧩 词语组成解析
[计] 双条件的, 双态的
🗣️ 情景例句
I've decided to stay at home and be a full-time mother.
我决定留在家里做一个专职母亲。
I asked him to lend me a book , but he wouldn't.
我请他把书借给我，但是他不肯。
May I come in, please? I'm sorry I'm late.
我可以进来吗？对不起，我迟到了。