as happy as a clam
非常開心
口語·形容非常開心滿足
英文釋義
to be very happy or content
例句
He's as happy as a clam playing video games all weekend.
典故來源
源自19世紀美國,完整說法是“as happy as a clam at high water”,漲潮時蛤蜊安全不被挖,比喻極度滿足。