rescue: implies a freeing from imminent danger by prompt or vigorous action: ~ the crew of a sinking ship.   (基础词free释放，这里表示解救、脱离)   free和release是这组的基础词


deliver: implies the releasing usually of a person from confinement, temptation, slavery, suffering, or something that distresses: ~ed his people from bondage.   (release多指从压抑克制中释放，如release his anger释放他的忿怒) （confinement禁闭关押局限refers to the state of being forced to stay in a closed space, prison, etc.,如her confinement to a wheelchair她半步离不开轮椅，years of confinement as a political prisoner作为政治犯被关押的岁月，the epidemic was confined to the Glasgow area疫情被控制在格拉斯哥地区，如he did not confine himself to the the language of Chinese他没把自己局限于中文一种语言）  


redeem: implies a releasing from bondage or penalties by giving what is demanded or necessary as an equivalent: ~ed her from a life of boredom.    （bondage两个意思，1奴役表示身为奴隶，必须为他人劳动refers to the state of being a slave and having to work for the master，如masters sometimes allowed their slaves to buy their way out of bondage奴隶主有时允许奴隶为自己赎身 2不自由、束缚means not free，如all people, she said, lived their lives in bondage to hunger, pain and lust她说，所有人的生活都受到饥饿痛苦和欲望的束缚）     如电影《the shawshank redemption肖申克的救赎》海报上写着fear can hold you prisoner, hope can set you free恐惧将你禁锢，希望还你自由


ransom: specifically applies to a buying out of captivity: subjects forced to ~ their king.   臣民


reclaim: suggests a bringing back to a former state or condition of someone or something abandoned or debased: ~ed long-abandoned farms.   debase贬值减损败坏，如货币贬值，声誉败坏


save: may replace any of the foregoing terms, or it may further imply a preserving or maintaining for usefulness or continued existence: a social worker who ~d youths from life as criminals.  


rescue救援: 采取紧急行动，使人脱离迫在眉睫的危险，deliver解救: 使人摆脱禁锢奴役痛苦，redeem救赎: 指付出相应代价救人，ransom赎买赎回: 特指支付赎金将人买回，reclaim重新开垦、获得: 指重新开垦土地或重新获得某物，save挽救: 泛指、可替换其他各词，还可指保存保留以备之后使用


记忆方法: 1) 首字母RDRRRS四人的事，想成人人的事<==拯救

         2) 拯救的意思是使人脱离危险困难mean to set free from confinement, risk, or danger.首字母RDRRRS四人的事，想成人人的事<==拯救   拯救的意思是援救（即救助），"拯"的本义是"向上举"