turn down  拒绝，使变弱，减少

　　I had to turn down a job in Indonesia. 我不得不拒绝印度尼西亚的工作岗位。

　　Tell the kids to turn down the TV. 让孩子们把电视的声音放低。

　　I don't know what's keeping them, but I'm sure they'll turn up. 我不知道他们因为什么事情而迟到，不过我敢肯定，他们迟早会露出真面目的。

　　What are you going to do with the offer? 你要怎么处理那个提案？

　　I'm pretty sure I'm going to turn it down.  我很肯定，我会拒绝的。