preserve;keep;conserve;hold都有保存的含义,有什么区别

preserve;keep;conserve;hold都有保存的含义,有什么区别 defend,guard,preserve,keep的区别例子：It is not easy to places of historic interest.It takes a great deal of money and advanced technique.A.defend B.guard C.keep D.preserve they do what they can__the old museum from__A.to preserve;being destroyedB.protect;destroyingC.prevent;being destroyedD.keep;being destroyed 语法：People keep themselves involved in intensely hard work in order to preserve their positionsKeep themselves involved in是什么语法?keep sth done? preserve sb.和protect sb.的区别preserve:to save something or someone from being harmed or destroyed protect:to keep someone or something safe from harm, damage, or illness preserve reserve的区别 cancel preserve delete 英语翻译A society of natural farming economy employed slash-and-burn cultivation,burning mountains and destroying forest.Spring was a time when grass and trees start sprouting.To keep a balanced ecology and to preserve a better living environment Use the umbrella to ____ yourself from the rain.a. prevent b. keep c. save d. preserve此题选D.但是我觉得A,B也没错呀 The main purpose of the new arrangement is to encourage people to___money for their old age.A.save B.keep C.maintain D.preserve答案应该选A,为什么?请说明原因, 辨析 preserve conserve maintain sustain preserve和reserve怎么区别? conserve和preserve的区别? 亲 分析一下conserve,preserve keep keep keep keep