happy/ˈhæpɪ/
adj.-pier, -piest1. 愉快的； 幸福的She is a happy girl.她是个快乐的小姑娘。
They have a happy marriage.他们的婚姻很美满。
2. 适当的，恰当的a happy way of expressing an idea一个概念的适当表达方法
That was not a very happy remark on the wedding.那不是婚礼上应该说的话。
That's a happy thought of yours.你这个想法真妙。
3. 高兴的；愉快的I'll be happy to meet him.我将高兴地与他见面。
I'm very happy that your health is showing signs of improvement.看到你的健康状况显出好转的迹象，我非常高兴。
I'll be happy to meet them when I have time.我有空的时候，很乐意同他们见面。
4. 祝贺快乐Happy New Year新年快乐
Happy Birthday生日快乐