否定句是not work hard，例如：
1、She complained that he did not work hard.她抱怨他工作不努力。
2、In this way， they may not work hard at their studies.这样一来，他们可能就不会再努力学习了。
3、They thought that a person with talent or intelligence did not need to work hard to do well.他们认为一个有天赋或智慧的人不需要努力就能把事情做好。
