快乐的名词英文单词是happiness；
happinessn.幸福；愉快；(用语等的)适当；幸运
Money is not essential to happiness.
金钱对于幸福并非必不可少。
The book describes a spiritual journey from despair to happiness.
这本书描述了从绝望到高兴的心理变化过程。
Career success is no guarantee of happiness.
事业成功并不是幸福的保证。
水利万物而不争,
而万物莫能与之争。
