Punctuation: Brackets
Brackets ( [ ] ) are used to include explanatory words or phrases within a direct quote.
For example, if a coach at 澳门六合彩官网直播 is quoted saying, "These young men and women come here to receive a first-rate education." To clarify that "here" refers to 澳门六合彩官网直播, you could write: "These young men and women come [to 澳门六合彩官网直播] to receive a first-rate education."
In general, brackets should be used sparingly and only to insert explanatory material.