A, the usage of the colon:

1. After the address used in letters and speeches, the following contents are mentioned;

2 in interviews, debates, symposiums, court trials and other records, used after the name of the speaker. , which leads to the content of the speech;

3. After being used in suggestive discourse, it means to mention the following contents;

4. After it is used in general discourse, it causes controversy;

5. Summarize the above contents before using them in general discourse;

6. After being used in words that need to be explained, it means that the following is an explanation;

7. Separate the author from the title of the work.

8. Separate the subject words in the title from the supplementary part of the explanation.

Second, the usage of semicolon is as follows:

1. Separate two related clauses (juxtaposition, turning point, undertaking, cause and effect, etc.). , and it is usually a parallel relationship). A clause can be a single repeated sentence, the first clause of a multiple complex sentence, or a parallel part of a big sentence;

2. Semicolons can also be used to separate coordinate phrases that appear as enumeration items;

3. Semicolons can also be used between items listed in branches;

4. Pause between coordinate clauses in complex sentences, and use semicolons.

Extended data:

Other punctuation marks are used as follows:

The usage difference between semicolon and colon:

Semicolons and commas are used for pauses in the middle of sentences. The main differences are as follows: in comma-separated sentences, the second half sentence is basically the continuation of the first half sentence (the so-called continuation relationship); In sentences separated by semicolons, the second half and the first half are generally similar in meaning or form, related and similar.

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