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
Robbie, I want you to meet
Robbie，我要你见过
What is on the schedule this morning?
今天上午有什么安排？
The last lap! Wu Peng from Class 1 and Lin Tao from Class 3 were still neck and neck.
最后一圈！1班的吴鹏和3班的林涛仍然是并驾齐驱。