Biconditional operation
[计] 同操作, 双态操作
🧩 词语组成解析
[计] 双条件的, 双态的
🗣️ 情景例句
Well, good night.
好吧， 晚安。
It is never too late to mend.
亡羊补牢，犹为未晚。
There has long been a superstition among mariners that porpoises will save drowning men by pushing them to the surface, or protect them from sharks by surrounding them in defensive formation.
长期以来，海员中流传着一种迷信的说法，认为海豚会把快要淹死的人托到水面，救人性命；或在人们周围列队保护，使他们免遭鲨鱼伤害。