他不小心把墨水弄到衬衫上，留下了一块污渍。

He accidentally ___blotted his shirt with ink.

她用纸巾轻轻按在脸上吸干了汗珠。

She gently ___blotted the sweat from her face with a tissue.

那次错误的决定玷污了他作为优秀教师的声誉。

That poor decision ___blotted his reputation as an outstanding teacher.