The former manager tried to besmirch the company's name in a series of online posts.

前任經理試圖在一連串網路貼文中詆毀公司的名聲。

Our legal team will respond if anyone besmirches the brand during the product launch.

若有人在產品發表期間詆毀品牌，我們的法務團隊將會回應。

The candidate felt the reference letter unfairly besmirched her reputation with the hiring committee.

這位應徵者覺得那封推薦信在招聘委員會面前不公平地抹黑了她的名聲。