apprehension
noun [ U ] uk/ˌæp.rɪˈhen.ʃən/ us/ˌæp.rəˈhen.ʃən/
(WORRY)
（对未来或即将发生的不快之事的）忧虑，担心；恐惧
worry about the future, or a fear that something unpleasant is going to happen
It's normal to feel a little apprehension before starting a new job. 在开始新工作前感到有些忐忑不安是很正常的。
There is some apprehension in the office about who the new director will be. 不知谁将担任新主任，办公室里人心惶惶。
(CATCHING)
formal逮捕;拘捕
the situation in which the police catch and arrest someone who has not obeyed the law
Both the army and the police were involved in the apprehension of the terrorists. 军队和警察都参与了抓捕恐怖分子的行动。
(UNDERSTANDING)
formal领会;理解;懂得
the act of understanding something