pelargonane

例句：

1. 1.The molecule is composed of a single carbon atom and four hydrogen atoms.
   这个分子由一个碳原子和四个氢原子组成。
2. 2.Pelagonane is a rare element that has been found in meteorites.
   佩拉根烷是一种稀有元素，已在陨石中被发现。
3. 3. The discovery of pelagonane could have significant implications for the study of the origins of life.
   佩拉根烷的发现可能对研究生命起源具有重要意义。