the news that Einstein's former colleagues Otto Hahn and Fritz Strassmann had split the atom.

爱因斯坦的前同事奥托·哈恩和弗里茨·斯特拉斯曼分裂了原子这一消息。

A methane molecule is composed of one carbon atom attached to four hydrogen atoms.

甲烷分子是由一个碳原子和四个氢原子构成的。