坐視不救 sit idly by without lending a helping hand; look on with folded arms; sit and look on unconcerned; sit back and watch without going to the rescue; sit still and not try to save ...; sit there and make no effort to save
坐收漁利 set the snipe and clam at each other and then take advantage of both; earn a profit without working for it; effortlessly to reap the spoils of a contest fought by others; play off one person against another; profit from others' conflict; reap advantages from both sides without lifting a finger; reap the benefit; reap the spoils of victory without lifting a finger; reap third party profit; sit idle and rake in a profit; the third party benefits when two parties fight each other