A new high-performance contact lens under development at the department for applied physics at the University of Heidelberg will not only correct ordinary vision defects but will enhance normal night vision as much as five times, making people s vision sharper than that of cats.

　　contemplate v. 注视;沉思

　　My grandfather, a retired worker, often contemplates the past with a feeling of longing and respect.

　　content n.内容, 容量 v. 满足 adj. 满足的

　　In addition, that social context affects both directly and indirectly the media and the media content to which you become exposed.

　　contradict v.反驳;与 矛盾

　　Recent stories in the newspapers and magazines suggest that teaching and research contradict each other, that research plays too prominent a part in academic promotions, and that teaching is badly underemphasized.

　　contrary adj.相反的

　　on the contrary 相反

　　Contrary to popular belief that classical music is too complex, it achieves a simplicity that only a genius can create.(98-1)

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