习惯用语as happy as the day is long1.非常幸福[快乐]as happy as a clam1.非常幸福[快乐]as happy as a king1.非常幸福[快乐]as happy as a lark1.非常幸福[快乐]be happy in1.(幸好)有...be happy together1.(夫妇)和睦相处het the happy mean1.采取中庸之道strike the happy mean1.采取中庸之道