趁虚而入趁：乘着；虚：空虚。趁力量虚弱时侵入。[查看详情]

乘虚以入乘：趁着；虚：空隙弱点。趁着空隙或无人防范而进入。[查看详情]

浑水摸鱼比喻乘混乱的时机从中捞取不正当的利益。例少数豪门浑水摸鱼，越来越富，越花越有。英fish in troubled waters; try to make a calamity the means to personal profit;[查看详情]

有机可乘有机会可趁有空子可钻。例闻之窃喜其有机可乘。——《聊斋志异》英an opportunity to be taken advantage of;[查看详情]

趁火打劫利用失火的混乱时机行劫比喻趁人之危从中取利。英try to profit from another’s misfortune; rob the owner while his house is on fire;[查看详情]

乘隙而入同“乘虚而入”。[查看详情]

有隙可乘指做事情考虑不周密使别人能找出漏洞加以利用。例今魏有隙可乘不就此时伐之更待何时？——《三国演义》英there is a crack to squeeze through; fulnerable;[查看详情]