Pretend you are happy when you are blue ,it's not very hard

Pretend you are happy when you are blue ,it's not very hard pretend happy when you are blue,it's not hard to do来自哪首歌 pretend happy when you are blue,it's not hard to do. Pretend you are happy when you are blue.It is't very hard to you are try very hard not to do it It's not very pleasant when you are accused of something you 英语翻译下面是一句话：It`s easier to pretend to be what you are,not tha what's the matter with you it s--- that you are not happy ha Life is hard when you don't know what you are; it's harder w you can be s( )when you are work hard you are so very happy so you are very happy!