Lewis structure
[化] 路易斯结构
🧩 词语组成解析
n. 吊楔
🗣️ 情景例句
That's great. I'll come back right after the formalities.
那太好了。手续办完后我就回来。
I can't begin to tell you how much I appreciate this honor.
我实在是无法表达我对给予我此荣誉的感激之情。
but where had it come from?
但它是从哪儿来的呢？