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
but it's too early to know for sure.
但我现在还不能决定。
Being happy in my work is most important to me.
工作中开心最重要。
It certainly looked genuine.
那看上去确实不假，金