4.8. 1 quotation marks include double quotation marks and single quotation marks.

4.8.2 Words directly quoted in the text should be quoted. For example:

A) Einstein said: "Imagination is more important than knowledge, because knowledge is limited, and imagination summarizes everything in the world, promotes progress and is the source of knowledge evolution."

B) The adage "Full of losses, moderate gains" has been around for at least two thousand years.

C) The horse painted by modern painter Xu Beihong is "full of vitality" as some critics have said.

4.8.3 The objects that need to be discussed emphatically are marked with quotation marks. For example:

The ancients had a basic requirement for writing articles, which was called "orderly things". "Having something" means having content, and "having order" means being organized.

4.8.4 Words with special meanings are also marked with quotation marks. For example:

A) Looking up from the foot of the mountain, I saw torches arranged in many zigzags, stretching all the way to the sky, connected with the stars, and I couldn't tell whether they were torches or stars.

B) It is better to have fewer such "smart people".

4.8.5 If quotation marks are still used inside, double quotation marks are used outside and single quotation marks are used inside. For example:

He stood up and asked, "Teacher, what does the word' orderly' mean?"

Excerpted from the national standard "punctuation usage", I hope it will help your study!