particle

/ˈpɑrtɪkəl/

(nontechnical usage) a tiny piece of anything

中文释义：粒子；微粒

Physicists study the behavior of subatomic particles in particle accelerators.

物理学家在粒子加速器中研究亚原子粒子的行为。

Air pollution consists of tiny particles that can harm human health.

空气污染由可能危害人体健康的微小颗粒组成。