still waters run deep
成語所屬單字water
still waters run deep — 慣用語
1. a quiet or shy person may have a very strong or interesting inner personality
1.慣用語
釋義
a quiet or shy person may have a very strong or interesting inner personality
例句
Nobody expected quiet Christopher to tell such funny stories — still waters run deep, I suppose.
The librarian hardly ever speaks, but still waters run deep — she writes poetry in her free time.