We have other ways of protecting; many of our cells are inside our body protected by specialized cells of our skeletal system.

人类有其它的保护机制,我们体内的细胞受,特化的骨骼细胞保护

耶鲁公开课 - 生物医学工程探索课程节选

This is a form of discrimination that is protected explicitly by American law.

这是一种歧视行为，法律明文禁止。

退休很神奇 - SpeakingMax英语口语达人