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mouth; lips
shape of the mouth
near an entrance; vicinity of an entrance
彼かれの口元くちもとが緩んゆるんだ。
His mouth relaxed.
口元くちもとに指ゆびを当てあてた。
He put a finger to his lips.
彼女かのじょは口元くちもとを手てで隠しかくして笑っわらった。
She laughed while covering her mouth with her hand.