组成 (zǔ chéng): to form, to compose

This band is made up of three university students, and they perform for free on campus every week.

A water molecule consists of two hydrogen atoms and one oxygen atom; this is something we learned in middle school chemistry class.

This tour group is composed of twenty tourists from different countries, and the guide needs to explain in both English and Chinese.

This committee is formed by five experts, and their task is to evaluate the safety of the new drug.