compound particle

例句：

1. 1. The physicist used a compound particle to explain the phenomenon.
   物理学家使用一个复合粒子来解释这个现象。
2. 2. The chemical reaction is caused by a compound particle.
   化学反应是由一个复合粒子引起的。
3. 3. The compound particle has been studied extensively in the field of chemistry.
   在化学领域，复合粒子已经被广泛研究。