How to use English comma

1, a comma can be followed by a sentence, and the comma component should be complete. He came here to have a look-he came here to have a look. Usage is similar to this, but still wait.

2. Comma is used to indicate a short pause in a sentence. The use of commas should not be sloppy, because a misplaced comma will change the original meaning of the whole sentence. For example:?

James hit Ryan and Edward and ran away. James ran away after hitting Ryan and Edward.

James hit Ryan and Edward ran away. James hit Ryan, and then Edward ran away.

3. Use commas to separate two or more items. If there are more than two items in the list, please separate them with commas. For example, "cars, trucks, vans and tractors". Put a comma in front of the truck to distinguish tractors from other vehicles.

4. Add commas between adjectives (if each adjective uses similar attributes to modify nouns within its jurisdiction). For example, "a small, dark room". However, when adjectives use different attributes to modify the nouns under their jurisdiction, there is no need to use commas. For example, "an outstanding international lawyer" or "a shy blue suit".

5. Commas are used in brackets to isolate the components of sentences, and the components in commas are used as supplementary explanations. For example, He, a high school student, finally won the competition.

Baidu encyclopedia-punctuation marks