Optical purity
[化] 光学纯度
🧩 词语组成解析
🗣️ 情景例句
I'm sure Robbie has them.
我确定在Robbie那里。
You'd better go at once, hadn't you?
你最好马上走，不对吗？
A few days later, she sent a boy to the workman to ask him if his name was Hans Bussman.
几天后，她派了一个男孩去问那人是否叫汉斯。巴斯曼。