Complex arithmetic
[计] 复数算术
🧩 词语组成解析
🗣️ 情景例句
Dad! Grandpa! He fell in!
爸爸， 爷爷， 他掉下去了。
Well, goodbye. See you soon.
那么，再见。后会有期。
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。