mechanism名词，装置；方法，机制

me cha nism

常用词组：defence mechanism防御机制

真题例句：Many migrators迁移动物 also must have an internal内部的 timing mechanism机制 that compensates补偿 for the continuous连续的 daily movement of Earth relative to celestial天上的 objects.

In the old days过去，we didn't much write like taking because there was no mechanism机制 to reproduce复制 the speed of conversation谈话.

A car is composed of组成 numerous 巨大的mechanisms机件.

A bomb炸弹 has been detonated被引爆了by a special mechanism装置.

词形词性联系记忆：mechanism名词，装置；方法—mechanisms名词，机制（mechanism的复数）—mechanise动词，使机械化（等于mechanize）—mechanimation名词 机械化—mechanist名词，机械师—mechanistic形容词，（观点或解释）机械化的—mechanistically副词，机械地—mechanization名词，机械化

mail名词，邮政


We all get papers文件 like those in the mail.

My postcard明信片 is in the mail邮件.

词根词源：来自词根molko，袋子。后指旅行袋，信件袋，邮袋，最终用于指邮件→mail邮件词根：molko皮袋，袋子

The firm has offices公司有办事处 in several large cities在几处大城市，but does most of its business by mail邮件.

常见词组：mail carrier/delivery/fraud/merge邮递员/邮递/邮件诈骗/邮件合并


gear名词，齿轮，变速器；档位；装备

gear

Helmets头盔 are an important ice skating滑冰 gear装备.

词根词源：garwi设备，服装→后来变为gear→gear传送装备，服装

词根：garwi设备，服装→后来演变

The car was in fourth第四 gear档位.

常见词组：gear change/level sth./to变速杆/换挡杆/使合适/使合适