Biconditional
[计] 双条件的, 双态的
🗣️ 情景例句
Yes. I have a room booked with you, for three days starting today. Name of Lu, L-U.
是的，我已向你们订了房间，从今天开始，共三天。姓陆，L-U。
A close mouth catches no flies.
病从口入，祸从口出。
That fits the puzzle! It must be him!
这符合谜底，肯定是他。