Iff
[计] 如果仅仅, 当且仅当, \等价\
🗣️ 情景例句
Well, I can use your brainpower on the job right now.
嗯， 我马上可以将你的才智用在这项工程上。
A light heart lives long.
心胸开朗，使人寿长。
'What has happened?' she asked.
“发生了什么事？”她问，