component

A high-quality processor is the most expensive component inside a high-performance gaming laptop.

(Chinese) 高质量的处理器是高性能游戏笔记本电脑内部最昂贵的组件。

Nitrogen is a major component of the Earth's atmosphere, making up about seventy-eight percent of the air.

(Chinese) 氮气是地球大气层的主要成分，约占空气的百分之七十八。