乘隙

nhân cơ hội; lợi dụng khe hở

take advantage of a loophole/crack/unguarded sector; turn sb's mistake to one's own account; exploit sb's blunders/errors/mistakes 乘敌之隙 exploit the enemy's blunder 乘隙 突围 seize the chance to break through the siege 乘隙 而入 take advantage of the error and enter; seize the opportunity to step in