(1) Explain the previous words. There are many ways to explain, and you can analyze and clarify any aspect of the problem.

(2) Supplementary explanation of relevant contents.

(3) Contains sequential words.

(4) Mathematical usage.

2. The square brackets "[]" are used to indicate missing or incorrect writing, international phonetic symbols, references, etc.

3. Hexagonal brackets "]":

(1) Add words to the quotation to make the meaning coherent.

(2) font size for document.

(3) Note the text in the footnote.

(4) Indicate the nationality or dynasty of the author.

(5) The serial number used for comments.

4. Square brackets: commonly used to mark the entries of reference books.

Examples of parentheses:

Fish can only swim in the sea (water), and birds can only fly in the sky (atmosphere). (Zhang's Birds Fly and Fish Jump Association).

Jiang Jie's name is Jiang Zhujun. (Primary school language "Jiang Jie").

Traditional operas indicate the number of folds and the names of sentences, and Zhang Hui's novels indicate the number of times. A Chinese Dictionary: Example Sentences.

Second, the use of square brackets for example:

Stubble is spicy and non-toxic. A prescription of herbs from the Tang Dynasty.

For example, Sima Qian's "One Hundred and Thirty Records of the Historian" copied two originals, one in the capital and the other in a famous mountain, which were handed down to the world. Although what he did [amazing? ] However, it is not just writing (Research on Publishing 1995, 3 issues, 45 pages). (editing journal 1995/6).