befoul|befouled|befouling

这些恶意谣言企图玷污她在业内的声誉。

The vicious rumors were spread to ___befoul her professional reputation.

这些谣言玷污了她作为慈善家的好名声。

The rumors ___befouled her good reputation as a philanthropist.

游客乱扔垃圾正在污染这片美丽的海滩。

Tourists littering are ___befouling this beautiful beach.