红宝书缺失的GRE单词汇总（7）

　　mediocrity n. 平庸，碌碌无为

　　Grateful as we are for these splendid books, they remain isolated examples of excellence in a literature of mediocrity.

　　melancholy adj. 忧郁的;令人悲伤的

　　词根记忆：melan+chol+y胆汁发黑忧郁的

　　menial adj. 仆人的，卑微的;n. 家仆

　　Although Ms. Brown found some of her duties to be menial, her supervision of forty workers was a considerable responsibility.

　　subservient, obsequious, servile, slavish

　　mercenary adj. 唯利是图的;n. 雇佣兵

　　词根记忆：mercen+ary只为了工钱的唯利是图的

　　meretricious adj. 华而不实的，俗艳的

　　来自meretrix

　　meritorious adj. 值得赞赏的

　　merit+orious长处很多值得赞赏的

　　mesmerize v. 对催眠;使入迷，迷住

　　metabolic adj. 新陈代谢的

　　来自metabol+ic新陈代谢的

　　When trees go dormant in winter, the procedure is anything but sleepy: it is an active metabolic process that changes the plant radically.

　　metamorphose v. 变形

　　词根记忆：meta+morph+ose变形