We need to be happy
开心───happy;保持───keep
She had a happy girlhood.───她有个快乐的少女时代.
Everybody looked cheerful and happy.───大家都表露出轻松愉快的神情.
Like the best stories, this one may yet have a happy end.───就像最精彩的故事那样,这个故事也许仍会有个美好的结局。
Happy birthday, sweetheart.───生日快乐,亲爱的。
They are happy, norneed we worry.───他们很幸福, 我们也不必担心.
For the past month or more, she had been unusually happy and had been really throwing herself into her work.───在最近的一个多月里, 她异乎寻常地快乐,工作也做得勤快.
I'm more than happy to take you there in my car.───我非常愿意开车送你去那里.
He was never happy living at home with his parents, so as soon as possible he flew the coop and got his own place.───他跟父母住在一起时从来没开心过, 所以他尽早离开家,有了自己的小窝.