Stereomer
立体异构体
🗣️ 情景例句
The interview was fine.
面谈得很好。
Please sign a copy of our Sales Contract No.156 enclosed here in duplicate and return to us for our file.
请会签第156号销售合同一式两份中的一份，将它寄回我方存档。
Use your head.
动动脑筋。