diamond in the rough
01
外冷内热, 看着粗糙，心地很好
someone who is much nicer and friendlier than they first appear
Dialect
American
American
褒义
习语
例子
He seemed rude at first, but he turned out to be a diamond in the rough.
他一开始显得很没礼貌，后来才发现其实是外冷内热。
02
something that has potential or is of great value, but is currently unpolished, unrefined, or in need of improvement
例子
The house is a diamond in the rough, and with some hard work it will be really beautiful.
