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facial expression; countenance
look; appearance; expression (vocal, etc.)
彼女の表情から何かあったことが分かった。
I could tell from her expression that something had happened.
夕暮れになると街の表情が一変する。
At dusk, the appearance of the city changes completely.
彼の表情が突然暗くなって心配になった。
His expression suddenly darkened and I became worried.