macroscopic肉眼可见的

　　magnet 磁铁，磁铁石 The pin was extracted with a magnet

　　magnify 放大，扩大 I want to magnify this picture

　　maintain 维持，保持 maintain law and order

　　malfunction 发生功能障碍，发生障碍 If the computer malfunctions it fails to work properly

　　maltreat 粗暴地对待，虐待 We’ll not intervene unless the children are being physically maltreated

　　manifest 显然的，明了的manifest superiority

　　manipulate (熟练地)操作 Mr. Smith manipulated the ivory chopsticks with great dexterity

　　mature 熟的，成熟的 a mature fruit

　　merit 长处，优点，价值，功绩 merits and demerits

　　minor 较小的，较少的，较不重要的

　　mislead 把……引错方向，把……引入歧途

　　moan 呻吟声，呜咽声 Each time she moved her leg she let out a ～ .

　　mobilize 动员 Our country’s in great danger, we must ～ the army.

　　mock 嘲笑，嘲弄 He had ～ed her modest ambitions.

　　model 模型，原形 build airplane ～s

　　modify 修改，更改 ～a law

　　momentary 片刻的，瞬息的 a ～ feeling of fear

　　monitor (学校的)班长 a ～ in class 5.

　　mortgage 抵押(借款)He will have to ～ his land for a loan.

　　motion 动，运动the ～ of the planets

　　motive 动机，目的be proper in～

　　mount登上， 爬上～ the steps

　　multiply 乘，相乘～ 7 and 8

　　muscle 肌肉 facial ～s

　　mutual 相互的， 彼此的 ～ aid