Polysolrol
聚核糖核蛋白体; 聚核糖核蛋白体
🗣️ 情景例句
Columbia's a terrific school.
Columbia，是一所很棒的学校。
How many pieces are you going to buy?
你要买几个？
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。