maintenance n. 保养
massive a. 大量的; 大而重的
mask v. 掩饰
mature a. 成熟的
moderate a. 适度的 ~ physical exercises
motivate v. 。激励
magnify v. 放大，扩大> ~ the photo
manifest v. 显示，表明The illness ~s itself with a high fever。
marginal a. 微小的
masculine a. 男性的
mediate v. 调解 He ~d in a salary dispute between the union and the management。
merge a. 合并
migrate v. 迁徙; 移居> Birds migrate with seasons
mingle v 混合
mobilize v. 动员
naïve a. 天真的=innocent
negligible a. 可以忽略不计的 the ~ cost
norm n. 标准 reach the ~
notable a. 著名的
notorious a. 臭名昭著的 If one has a scandal, he becomes ~
nourish v. 养育
From:https://www.zgghmh.com/CET-6/20006493.asp