Iff
[计] 如果仅仅, 当且仅当, \等价\
🗣️ 情景例句
The first word is snow.
第一个字是"snow。
Contact me by telephone.
电话跟我联络。
I remember. You tried it on and it looked wonderful on you. I'm sure you looked beautiful that evening. You were always a pretty girl.
我想起来了。你还把项链戴上试了试，戴在你身上真是太好看了。我相信那天晚上你一定很美。你总是那么漂亮。