留美老师带你每天说英文 第470期:耳垢对耳朵的好处

台湾籍旅美老师今天交给我们的句子是：

Now, your cerumen is protecting you from infection, lubricating your ears, and it's keeping a health record for your doctor. But even knowing all of that, there are those of you who will totally wanna get rid of it.
现在，你的耳垢再保护你免受感染、润滑你的耳朵及为医生记录你的健康史。但即使知道这么多好处之后，还是有人千方百计地想要除掉耳屎。