Arcsin
abbr. arcsine 反正弦
🗣️ 情景例句
You'll need to hurry up, or you'll miss the train.
你得快点，否则赶不上火车。
Joy often comes after sorrow, like morning after night.
暮去必将朝至，苦尽常会甜来。
It was the first joy I had known for years.
我豁然开朗了。这是我多年来第一次感到高兴的事了。