Parentheses in English are used to add extra information that is not crucial to the main message in a sentence. They can represent actions, comments, or sounds of characters.
Parentheses are used to provide additional but not essential information in a sentence. In the given sentence, the parentheses are used to convey the character's action or sound.
For example, in the sentence, "And then I said, 'Is that all the goats you've got?' (laughter)," the parentheses indicate that the word "laughter" represents the character's action.
It's important to note that a sentence should still make sense if the information within the parentheses is removed.
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