Know one's onions
精明
🧩 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
n. 奥尼恩斯（姓氏）；奥尼恩斯（英国语言学家、词典编纂家）
🗣️ 情景例句
What a lovely couple you make!
你们真是天生的一对。
Will you please lock the door when you leave?
请您当你离开时，锁门？
With the invention of writing, a great advance was made, for knowledge could then be not only communicated but also stored.
随着书写的发明，又迈进了一大步，因为这样一来，知识不仅能交流，而且能储存了。