(1) is used to fill a vacancy or make a mistake, for example, stubble is spicy and nontoxic.

(2) It is commonly used when labeling phonetic symbols, such as English phonetic symbols [:] [? :] [I:] [? :] [u:][？ ][? ][? ][? ][? ][e] [？ ]

(3) Used for phonetic notation after prefixes in dictionaries, such as Fu [fú]

(4) Dictionaries are used to indicate etymology. For example, [Buddha] Buddhists call Sakyamuni. Buddha for short.

2. Hexagonal brackets []

(1) Add words to the quotation to connect the text with the meaning. For example, The Analects of Confucius Gongye Chang: "[Zi Gong] is just the opposite:' Give (Zi Gong) the night, how dare you turn back (Yan Hui)?

(2) Used for document font size, for example: Yu Hongfa [20 18]8 1No..

(3) Notes in footnotes, such as: [Jingjing] In ancient times, eight feet was a search.

(4) indicate the author's nationality or dynasty, for example, the little prince [France] Antoine de Saint-Exupé ry.

⑤ The serial number used for comments, for example, see Note [5] in this volume.

3. Double quotation marks ""

""is equivalent to ""and is used to express quotation, emphasis and special intention.

4. Braces {}

(1) Symbol of set in mathematics, for example: a = {x | x >；; 1}。

(2) In 2)Microsoft Office, it represents a domain.

5. Solid square brackets

Often used to mark items in reference books, such as: acid … acidification; Sour ...

6. Open square brackets []

A variant of solid square brackets, used with, is used to indicate reference items in reference books. If the positive item is marked, the reference item is marked with [].

7. Title ""

Used to indicate the names of various books, film and television works, music works, etc. Such as A Dream of Red Mansions and Fantastic Beasts and Where to Find Them.

8. Single quotation marks ""

""equals "",which is used to express quotation, emphasis and special intention. It is often used in movies, books, newspapers and magazines. For example, he said, "Why don't such' talents' find another job? 』