Dcf
[医] 直接离心浮选[法]
🗣️ 情景例句
Are you all right?
你还好吗？
He didn't enjoy losing the game of chess.
他因为下棋输了而索然无味。
'I don't think the windows need cleaning at this time of the night.
“我看不必在夜里这个时候擦窗子吧。