mechanic

I need to take my car to a reliable mechanic because the engine is making a strange noise.

(Chinese) 我得把车开到可靠的修理工那儿，因为引擎发出了奇怪的声音。

The aircraft mechanic carefully inspected the plane's wings before the flight.

(Chinese) 飞机修理工在飞行前仔细检查了飞机的机翼。

The book explains the basic mechanics of how the stock market functions.

(Chinese) 这本书解释了股票市场运作的基本机制。

He spent years studying the complex mechanics of professional golf swings.

(Chinese) 他花了几年的时间研究职业高尔夫挥杆的复杂力学原理。