The regular police have missed this paint smear or made some sort of unwarranted assumption about it.

普通警察没有看到这块油漆污点，或者对它做了一些毫无根据的假设。

youdao

Be careful; paint may smear.

小心，油漆会弄脏东西。

youdao

Be careful, the paint may smear.

当心，油漆会涂污的。

youdao

Warhol could produce her likeness in mere minutes, a silhouette instantly recognizable as a smear of black paint.

FORBES: If Every Artist Were As Good As Andy Warhol, Forgery Would Be Unnecessary [Book Excerpt]

You can paint things in black and white and smear those who attempt to make basic distinctions and warn against drawing conclusions based on weak data and irreproducible findings.

FORBES: Cell Phone Conspiracy Theorists Prefer To Indulge In Ad Hominem Attacks Rather Than Debate The Science