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
OK, Robbie, maybe you should watch him. Robbie
也许你得看着他点。
Would you please put it on top?
能请你把它放在最上面吗?
Yes, I am. Please be careful, Meimei. Don't go too high.
是的，我扶着呢，小心点儿，梅梅。不要上得太高！