53.I'm exposed to the thoughts of some of the world's best writers.

四级词汇讲解:

expose经常用作被动式be exposed to sth.，其实表示的是主动含义，意为“经常接触”。如:
※ Being exposed to the Internet, he knows a lot about e-commerce.
由于经常上网，他对电子商务十分了解。

※ Exposed to sunlight for too long, she suffers from skin cancer.
由于暴露在阳光下的时间太长，她患上了皮肤癌。