17. fuel injection system
A fuel injection system in a car is a way to introduce fuel into the engine. It is commonly used in modern cars and replaces older systems like carburetors. The fuel is pressurized and then sprayed into the engine by a part called an injector. This system helps optimize fuel efficiency and improve combustion in the engine.
燃油喷射系统
18. engine
/ˈendʒɪn/
the part of a vehicle that produces power to make it move
发动机，引擎
The engine won’t start.
引擎发动不起来。
19. radiator
/ˈreɪdieɪtər/
the part of a car or aircraft which stops the engine from getting too hot
（汽车引擎）水箱，冷却器，散热器
20. battery
/ˈbætəri/
电池
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