What is the role of （） in English?

Parentheses are mainly used to provide supplementary explanations for the content of a sentence. Its function is equivalent to an interjection in English, and its specific uses are as follows: (1) To enclose explanatory text such as examples, sources of quotations, references, and additional notes. For example: Emily Dickenson (1830-1886) was a great poet in American literature. Emily Dickinson (1830–1886) was a great poet in the history of American literature. (2) Parentheses are used to enclose numbers or letters that indicate a list. For example: You should finish three subjects by the end of this term: (1) Chinese, (2) maths, (3) English. You need to complete three courses by the end of this semester: (1) Chinese, (2) Mathematics, (3) English. (3) Circle the words that can be omitted. For example: It seems (to me) that he is not so honest. It appears that he isn’t that honest. (4) Indicate the optional content. For example: He often helps his mother do the housework. He frequently assists his mother with household chores.

I think the meaning of brackets in English is similar to that in Chinese; I’ve always believed that.