mixture

/ˈmɪksʧər/

(chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)

中文释义：混合物

The chemist prepared a mixture of salt and water for the experiment.

化学家为实验准备了一份盐和水的混合物。

Air is a mixture of gases, primarily nitrogen and oxygen.

空气是气体的混合物，主要是氮气和氧气。