Rarifying
vt. 使成精细；使变稀薄\\nvi. 变稀薄；纯化
🗣️ 情景例句
My professor will grade this exam on a curve.
我的教授用曲线系统打分。
Not your business.
要你管！
He then asked when Mr.Gilbert would be allowed to go home and the doctor told him that he would have to stay in hosptial for another two weeks.
然后他又问吉尔伯特先生什么时候可以回家，医生说他在医院还必须再住上两个星期。