Dcf
[医] 直接离心浮选[法]
🗣️ 情景例句
I could tell something was up by the look on their faces.
我一看他们的脸色就知道有事。
The used key is always bright.
常用的钥匙总是光亮的。
All machines are slightly different, so you need a short lesson when you start work in a new office.
所有的机器都稍微有些不同，所以当你新到一个办公室开始工作时，你需要进行短期培训。