Trifluorinated
三氟化的
🗣️ 情景例句
Learn to roll with the punches.
要学会应付困难。
The doctor is busy examining a patient.
医生为给病人做身体检查而忙碌着。
Firemen had been fighting the forest for nearly three weeks before they could get it under control.
消防队员们同那场森林大火搏斗了将近3个星期才最后把火势控制住。