Know one's business
精通自己一行
🧩 词语组成解析
know
[no]
v. 知道;了解;认识;确信;
n. 知情;
a. 人们的；自己的
business
[ˈbɪznɪs]
n. 商业，交易;生意;事务，业务;职业，行业;
🗣️ 情景例句
A piece of chewing gum stuck to my shoe.
一片口香糖粘在我的鞋上。
Take your time.
慢慢来。
Franz poured scorn on the idea, pointing out that his brother had been killed in action during the war.
弗朗兹对此不屑一顾，指出他兄弟已经在战争中阵亡了。