conj.关于什么，关于那个
adv.谁的；所…的

Whereof one cannot speak, thereof one must be silent.
你不能说的事情，你就必须保持沉默。
He was proud of his collection of antique vases, of which he had acquired many over the years.
他对自己的古董花瓶收藏感到自豪，这些年来他已经收集了很多。
She was unaware of the danger, of which her friends had tried to warn her.
她没有意识到危险，尽管朋友们曾试图警告她。
The book is divided into three parts, of which the first deals with history.
这本书分为三部分，第一部分讲述历史。
Of all the gifts, the handmade card was the most meaningful to her.
在所有的礼物中，那张手工制作的卡片对她来说最有意义。
Whereof there is no evidence, there is no guilt.
没有证据，就没有罪责。
In their travels, they visited several countries, of which France was their favorite.
他们在旅行中访问了多个国家，其中法国是他们的最爱。
The decision was based on solid research, of which the results were presented at the conference.
决策基于扎实的研究，研究结果已在会议上公布。
Her success in the job was largely due to her experience, of which she had plenty.
她在工作中的成功很大程度上归功于她的丰富经验。
He was ignorant of the law, of which he later faced severe consequences.
他对法律一无所知，后来为此付出了沉重的代价。