To attack an opponent's vital weaknesses and unguarded points, taking advantage of vulnerabilities; to exploit any loophole for one's own benefit.
在项目谈判中，他总是能敏锐地批吭捣虚，抓住对方的破绽，从而为公司争取到最大利益。
In project negotiations, he always keenly exploited the opponent's weaknesses and vulnerabilities, thereby securing the maximum benefit for the company.
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