To provide an enemy or villain with aid, such as weapons or provisions, thereby enabling them to do harm; to inadvertently help an adversary.
在团队竞赛中，如果队员将重要的策略泄露给对手，那无异于借寇兵，赍盗粮，最终只会让己方陷入被动。
In a team competition, if a team member leaks important strategies to the opponent, it's tantamount to providing weapons to bandits and provisions to thieves, ultimately putting their own side at a disadvantage.
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