1.maturation n.成熟( the process of becoming mature)
例：sexual maturation性成熟
2.mature v./a.成熟（的）(to ripen)
联想记忆：自然(nature)中的n更换成m就是成熟的(mature)
例：Cotton plants mature quickly.
3.maturity n.成熟(the quality or state of being mature)
词根记忆：来自mature(a．成熟的)
例：If the group faces excessive hunting, individuals that reach reproductive maturity earlier will come to predominate,
同根词：maturation(n.成熟；化脓)
4.maxim n．格言(a succinct formulation of a fundamental principle, general truth, or rule of conduct)
联想记忆：max(伟大)+im --最俸大的建议--格言
例：A penny saved is a penny earned is an old maxim.
同根词：maximal(a_最大的)：maximum(n.最大量)
5.maximize v.最大化( to increase to a maximum)
词根记忆：来自max(n.最大值)
例：Therefore, to increase repeat sales and maximize profits, we should discontinue the deluxe light bulb.
派生词：maximization(n.极大化，最大化)
同根词：maximum(n.最大量；a．最高的)
6.measles n.（单复数同）麻疹( an acute, contagious viral disease usually occurring in childhood and characterized by eruption of red spots on the skin, fever, and catarrhal symptoms)
7.mechanical a.机械的(of or relating to machinery or tools);呆板的(done without thinking, like a machine)
词根记忆：来自mechanic(a．手工的)
例：Most geologists and many historians today believe that Wegeners theory was rejected because of its lack of an adequate mechanical basis.
派生词：mechanically( ad.机械地；呆板地)
同根词：mechanism(n.机制;技巧)
8.mechanism n.机械装置（a piece of machinery）；机制(a process, technique, or system for achieving a result)
词根记忆：mechan(机械)+ism--机械装置
例:The new vaccine uses the same mechanism to ward off influenza as injectable vaccines do.
9.mechanization n.机械化，机动化(to make mechanical)
词根记忆：来自mechanize(v.使机械化)
例：The mechanization of farming in the village of Long Bow doubled the corn yield while the previous years costs were cut in half.
同根词：mechanical(a．机械的；力学的)