apprehend v．領會，理解
例句：The police are anxious to apprehend a young man believed to be armed with a gun．
警察急于逮捕一名確信攜有槍支的青年人。

apprehension n．理解，憂懼
例句：They waited for their decision with a great deal of apprehension.
他們懷著極其焦慮的心情等待他們作出決定。

comprehend v．領會，理解
例句：I believe that he could comprehend the feeling, and share both its strength and truth.
我相信他可以理解這種感情，而且分享它的力量和真誠。

comprehension n．理解，包含
例句：Algebra is beyond the comprehension of lower-class pupils, so is calculous.
代數是低年級學生所無法理解的，微積分也是。

comprehensive adj. 全面的，綜合的，廣泛的．
例句：The boys' and girls' schools have been converged to form a new comprehensive middle school．
男校和女校聯合組成了一所新的綜合中學。