be silent about的用法和樣例：
例句
- The shipping company will be liable for damage.
運輸公司將對損壞負責。 - To be plain with you, I know nothing about it.
坦白對你講，我對此一無(wú)所知。
- The officials maintained silence about the talks.
官員們對于會(huì )談情況保持緘默。 - Kirchofer duly kept mum about her sexual orientation at work.
在公司里，科奇弗乖乖地對自己的性?xún)A向保持緘默。
