mechanic
词根词缀：
machination n. 阴谋
machin〔= mach〕机器 + ation 行为，过程，状态，结果 → 砸坏机器 →〔搞〕阴谋
machine n. 机器
mach 机器 + ine 抽象名词 → 机器
mechanic n. 机械师
machan〔= mach〕机器 + ic 某种药 → 机械师
mechanize v. 机械化
mechan〔= mach〕机器 + ize …化 → 机械化
数据来源：新东方英语词汇速记大全
相关例句：
The mechanic installed new brakes.
修车工人装了新刹车。
He is quite a mechanic& he can repair his own car.
他自己会修车，真有两把刷子。
After the mechanic replaced the silencer, my car was as right as a trivet.
修理工更换了消音器后，我的汽车又正常了。
The Reliability Maintenance and Research of Maintenance Decision in Reduce Machine; The mechanic serviced our automobile.
减速机械的可靠性维修及其维修决策研究机械师把我们的汽车修好了。
Mechanic's expertise and research training.
机工的专业知识和考证培训等。
The energy-saving, fast response and high accuracy electro-hydraulic control systems are required by some mechanic equipments.
为了满足某些机械装备的需求，研究设计了节能、快响应、高精度电液控制系统。