Know what's what
有常识, 懂事, 有鉴别能力
🧩 词语组成解析
know
[no]
v. 知道;了解;认识;确信;
n. 知情;
what's
[[wɔts]]
（尤当 has 为助动词时, what is 或 what has 的常用口语形式）; 乌
what
[wɑt]
pron. （用以询问某人或某事物的词）什么，多少;…的事物;
adj. …的（事物或人）;
adv. （用于感叹句中）;
int. （用以表示不相信或惊奇）;（用以表示未听清楚对方说的话）;
🗣️ 情景例句
We'll have a chance to talk to them later.
我们以后还有机会跟他们谈。
Please excuse me for a little while.I want to do something.
请等我一会儿时间，我要做点事。
Pardon? Would you please say that again more slowly?
对不起，请你慢点儿再说一遍好吗？