Iff
[计] 如果仅仅, 当且仅当, \等价\
🗣️ 情景例句
What's the lowest you're willing to go?
最低你能出什么价？
That's not true.
那不是真的。
Do you think you can follow our specifications for packing?
就照我们的指定方式装箱，没问题吧。