Every substance, no matter what it is, is composed of very small particles called molecules.

各种物质，不论它是什么，都是由一些称为分子的很小的粒子构成的。

《新英汉大辞典》

Every substance, no matter what it is, is made of atoms.

无论何种物质，都是由原子构成的。

youdao

It has been proved that every substance, no matter what it is, is made up of atoms.

事实证明，世界上的每一种物质，无论它是什么，都是由原子微粒组成的。

youdao

Since then, hives have been made out of practically every substance imaginable, including clay, stone, logs, bark, wicker, cork, and bamboo.

NEWYORKER: Stung

Repeal the DSHEA law and give the Food and Drug Administration full authority over every manufactured substance that purports to promote health or relieve illness.

CNN: Herbal remedies need real scrutiny

The security firms that provide a round-the-clock guard for every private business of substance in Sri Lanka employ about 150, 000 people, mostly from the urban poor.

ECONOMIST: Sri Lanka