Biconditional
[计] 双条件的, 双态的
🗣️ 情景例句
They're real watches. They tell you the time, don't they?
当然是"真的表"罗。会走也会报时，不是吗？
Like teacher, like pupil.
有其师必有其徒。
The books which are on the counter.
就是柜台上的那两本。