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
If you would supervise the refurbishing,
假如你能监督整修过程，
You (or One) cannot make a silk purse out of a sow's ear.
粗瓷碗雕不出细花来。
We cannot proceed any further without receiving your thoughts with respect to the manner of payment.
我们如果不了解你们对付款方式的意见，便不能进一步检讨。