besmirch|besmirched|besmirching

谣言会玷污一个人的名声。

Rumors can ___besmirch a person's reputation.

泥水溅起，弄脏了她的新裙子。

The muddy water splashed and ___besmirched her new dress.

这些虚假评论是为了抹黑这家餐厅的良好声誉。

These fake reviews are aimed at ___besmirching the restaurant's good reputation.