waste and repair

例句：

1. 1. He wastes his time watching TV instead of studying.
   他浪费时间看电视而不是学习。
2. 2. The company's waste management program is a success.
   公司的废物管理计划很成功。
3. 3. We should not waste water when we can use it for other purposes.
   当我们能用它来其他用途时，我们不应该浪费水。