基本解释非常快乐同根派生 英汉例句双语例句Savers should be in seventh heaven.储户应在第七天堂。If Mr. B graduates with honor, he will be in seventh heaven.假如B先生能以荣誉生身份毕业，他将会十分高兴。英英字典剑桥英英字典to be extremely happy