A：There are things that are actually even smaller than atoms.

其实还有比原子更小的东西。

B：What are those?

是什么东西?

A：They are the things that make up the atom, such as electrons and protons.

就是那些构成原子的东西，比如电子和质子。

B：Is there anything that is smaller than electrons and protons?

还有比电子和质子更小的东西吗?

A：Of course there is. Things can be divided and broken down into indefinitely small parts if we can.

当然有了，如果我们能够做到的话，物质可以被分割或分解成无穷小的部分。

B：I really don't want to know about this. Physics gives me a headache.

我真的不想知道这些。物理让我头疼。