Stereoselectivity
立体选择性
🗣️ 情景例句
His studies advanced steadily.
他的学业不断进步。
Many a slip (many things fall) between the cup and the lip.
酒杯来到嘴唇边，得饮与否未可知；物未到手前，未能算己有；凡事难以十拿九稳。
Don't worry.
别担心。