A " gag rule" is a rule that a representative body or some organization has that says you can't talk about this in a meeting or in an official session.
“禁言规则” 是代表机构或某些组织制定的规则, 规定您不能在会议或正式会议上谈论此事。
美国历史
The flood of them was so continuous that the House of Representatives, forgetting its traditions, adopted in 1836 a " gag rule" which prevented the reading of appeals and consigned them to the waste basket.
A gag rule is a rule that limits or forbids the raising, consideration, or discussion of a particular topic by members of a legislative or decision-making body.