Microdetection
微量测定
🗣️ 情景例句
Good night.
晚安。
I remember the girl whose father earns $ 2000 a week.
我记得那个女孩的父亲一星期赚两千元。
He owes his wealth to diligence and good luck.
他的财富是由于他的勤劳和幸运。