do nothing to save sb. from ruin fold one´s hands and see sb. die leave one to sink or swim leave sb. in the lurch
You wouldn´t leave an old friend in the lurch, surely?
你总不会对老朋友见死不救吧?
—— 柯林斯例句A doctor cannot turn away a dying man.
医生是不能见死不救的。
—— 辞典例句Is that thecamera you used to film Leah´s kidnapping, without helping her?
这就是你拍下莉娅被绑架的过程却对她见死不救的那部摄像机 吗 ?
—— 给力词典精选