Your last question was about the marks you call round and square brackets.

你最后一个问题是关于你所说号和方号标点。

Some more parentheses, some more curly braces.

多号，多号。

I hope you can tell me about the difference between punctuation marks such as the semicolon, the colon and the comma and between round brackets and square brackets.

我希望你能告诉我分号、冒号和逗号之间区别，以及号和方号之间区别。

It is used to separate groups of words when, as the writer, you want to emphasize a statement...or use them in place of a colon...or to replace parentheses or a commma.

当你想要强调一项陈述时，它被用来分开一组单词，它们也可以代替冒号或号或逗号。