I write to understand as much as to be understood.

地球只是宇宙中的一个波点。

Diplomacy is not only about affairs between nations, but also involves global issues and the interests of all humanity.

制造链式反应机器的基本点当然是确保每次裂变产生一定数量的中子，其中一些中子将再次产生裂变。