Dcf
[医] 直接离心浮选[法]
🗣️ 情景例句
You work hard on all your committees,
而你总是在各种委员会里忙，
I'm not accustomed to that kind of social situation.
我不太习惯那种社交场合。
I had been asked to drive in heavy traffic and had done so successfully.
按照要求在车辆拥挤的路上驾驶，我圆满地完成了。