Nepetalactone is made up of two connected rings of mostly carbons.

荆芥内酯由两个碳原子相连的环组成。

Thalidomide, which is made up of three connected rings of carbon and nitrogen atoms, plus some oxygen and hydrogen, is what's known as a chiral molecule.

萨力多胺，由三个碳原子和氮原子的连接环以及一些氧和氢组成，也被称为手性分子。