unnerve: implies a marked and often temporary loss of courage, self-control, or power to act: ~d by the near midair collision.    如she appeared strained and a little unnerved她看起来神色紧张，有点心慌（不安、担心）   self-control自控力: 调节心态的能力


enervate: suggests a gradual physical or moral weakening through such debilitating influences as climate, disease, luxury, or indolence until one is too feeble to make an effort: totally ~d after a week's vacation.   debilitate使人"暂时"丧失能力，如做手术  feeble虚弱到可怜       enervating disease/climate使人衰弱的疾病/感到乏力的气候


unman: implies a loss of manly vigor, fortitude, or spirit: the sight of blood usually ~ned him.     （fortitude坚毅，指坚强地忍耐艰苦困难的品质） （spirit本表示精神，是使人行动的属性，但中文一般不说男子精神而是说男子"气概"，气概是在对待重大问题上表现的态度举动或气势，尤指正直豪迈的态度）


emasculate: stresses a depriving of characteristic force by removing something essential: an amendment that ~s existing gun-control laws.   如the company tried to emasculate the unions公司试图削弱工会的力量，Tosh was known to be a man who feared no-one, yet he was clearly emasculated by his girlfriend托什是出了名的天不怕地不怕，但是他明显顺从他的女朋友


unnerve不安: 使暂时丧失勇气和自控力，enervate虚弱: 使逐渐变得虚弱，如因天气疾病舒适慵懒，unman吓住、丧失男子气: 使丧失男子的气概，emasculate削弱: 使丧失必需力量


记忆方法: 1) 首字母eueu想成欧盟<==无力

         2) 无力的意思是失去力量mean to deprive of strength or vigor and the capacity for effective action.首字母eueu想成欧盟<==无力