括弧

A bracket is a punctuation mark used to separate or isolate a portion of text or data from the surrounding content, and comes in four main pairs of different shapes with names that vary between British and American English. The term "brackets" refers to different specific marks depending on whether you're using British English (where it means one pair) or American English (where it means another pair), which is why clarity about which version of English is being used can matter when discussing punctuation.

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