It's full of old toys, books and what not.

这里全都是旧玩具、书籍，以及诸如此类的东西。

Children love to have toys, pictures and what not.

孩子一般喜欢玩具、图片和其他的东西。

Do you always tell your child what to do and what not to just to 'keep them safe'?

仅仅为了“保证他们的安全”，你是否总是告诉孩子什么该做，什么不该做？

How does one know what to do and what not to do? Well, here are some examples.

怎么知道什么应该做，什么不应该做呢？很好，这有些例子。

The writers here have become smarter: they know what to write and what not to write.

作者们在这儿变得更聪明了：他们知道什么能写，什么不能写。