expression作表情可数吗?
expression
n. 表现，表示，表达；表情，脸色，态度，腔调，声调；式，符号；词句，语句，措辞，说法。
expression是可数名词。
There was a bored expression on her face.
她脸上有一种厌倦的表情。
His expression changed from amazement to joy.
他的表情由惊变喜。
His guilty expression confirmed my suspicions.
他内疚的表情证实了我的猜疑。
Clothes are a fundamental form of self-expression.
服饰是一种基本的自我表现形式。
