Iff
[计] 如果仅仅, 当且仅当, \等价\
🗣️ 情景例句
Hey, leaving me?
嗨 ，丢下我啦？
If the beard were all,the goat might preach.
如果长胡就好，山羊也可讲道。
We're going to help some farmers with their work.
我们打算去帮助一些农民干活。