Know one's stuff
精通自己的业务
🧩 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
stuff
[stʌf]
n. 材料，原料，资料;〈俚〉钱，现金;填充物;素材资料;
vt. 塞满;填塞;让吃饱;
vi. 吃得过多;
🗣️ 情景例句
Well, thank you, Mr. Maxwell.
噢， 谢谢你， Maxwell先生。
Would you hold the line, please, I will find out his number for you.
请你不要挂断，我替你找他的号码。
It has helped me to serve others.
这份礼物帮助我为他人服务。