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

你的最后一个问题是关于你所说的圆括号和方括号的标点。

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、冒号和逗号之间的区别，以及圆括号和方括号之间的区别。