to spread a liquid or a thick substance over a surface

The children had smeared peanut butter all over the sofa. 孩子们把花生酱抹得沙发上到处都是。

Can you explain why the front of your car is smeared with blood? 你能解释一下为什么你的汽车前部沾有血迹吗？

to publicly accuse someone of something unpleasant, unreasonable, or unlikely to be true in order to harm their reputation

She decided to sue for libel after the newspaper smeared her private life. 这家报纸对她的私生活造谣诬蔑，她决定以诽谤罪起诉。

a dirty mark made by spreading a liquid or a thick substance over a surface

You'd look very stylish if it wasn't for that smear of ketchup on your shirt. 如果不是裙子上那抹西红柿酱的话，你看上去会很时髦。

an attempt to harm someone's reputation by publicly accusing them of something that is unpleasant, unreasonable, or unlikely to be true

The prime minister has dismissed the allegations as smears and innuendo. 首相把那些指控斥为肆意诽谤和影射。

She claims she was the victim of a smear campaign (= repeated attempts to damage her reputation). 她声称自己是一系列抹黑活动的受害者。

a medical test in which cells from a woman's cervix (= entrance to the womb) are removed and examined to discover if there is any disease