happya.1. (感到)高兴的;乐意的[F][(+at/about)][+to-v][+that]I am happy to accept your invitation.我很高兴接受你的邀请。2. 满足的;满意的[F][(+about/with)]He won't be happy with the result.他对结果不会满意。3. 幸运的;幸福的[B]Their marriage has been a very happy one.他们的婚姻非常美满。4. (言行等)恰当的;巧妙的A happy thought struck her.她突然想到一个好主意。5. (用于祝词)快乐的[B]Happy birthday to you!祝你生日快乐!