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
One o'clock.
一点钟。
You can't please everyone.
你不可能讨好每一个人。
'Mr. Lane was defeated in the elections.
“莱恩先生在大选中被击败了，