1 [C,U] something that you say that shows your opinions or feelings 表示;表达:
Freedom of expression is a basic human right.言论自由是基本人权。an expression of gratitude/sympathy/anger表示感激/同情/愤怒的话
2 [C] the look on a person's face that shows what he/she is thinking or feeling 表情;神色:
He had a puzzled expression on his face.他脸上显出疑惑的神色。
3 [C] a word or phrase with a particular meaning 词;词语:
‘I'm starving’ is an expression meaning ‘I'm very hungry’.I'm starving 这句话的意思是 I'm very hungry。a slang/an idiomatic expression俚语;习语