smear|smeared|smearing

她的衣服上有一道墨水的污迹。

There was an ink ___smear on her dress.

小宝宝把果酱涂得满脸都是。

The baby ___smeared jam all over his face.

竞争对手试图通过散布谣言来诋毁公司的声誉。

The rival company tried ___smearing our reputation by spreading false rumors.