他在辩论中的一句犀利反驳让对手哑口无言。
His sharp ___retort in the debate left the opponent speechless.
当她被批评时，她立即用一个机智的反驳让对方哑口无言。
When criticized, she quickly shut the other person up with a witty ___retort.
她把溶液倒入装有冷凝管的烧瓶中进行蒸馏。
She poured the solution into the ___retort attached to a condenser for distillation.
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