Cephamycin
头霉素
🗣️ 情景例句
But I just sold it and retired.
我前不久把它卖了 然后退休。
Martha will expect you to come by at six o'clock for dinner.
玛莎以为你在六点以前会来吃晚饭。
He's over there. He's cleaning the car.
他在那边，在洗车。