There's nothing to it
We use this expression to say that something is easy.
我们用这个表达来说某事很简单。
A: How did you manage to get your laptop networked like that?
你是怎么让你的笔记本像那样联网的?
B: There's nothing to it. You just follow the instructions here.
这没什么。你只需要按说明做就行了。