Polysolrol
聚核糖核蛋白体; 聚核糖核蛋白体
🗣️ 情景例句
Are you sending it by regular or by speed?
你要寄平信还是快递？
This is a camera.
这是一台照相机。
We haven't received your order yet.
您的订单我们还没收到。