如何区别protect和preserveAt minus 100`C,a living cell can be ________ for a thousand years 空格中应该填protected还是preserved

请问 protect defend guard preserve的区别 求：preserve ,defend ,protect ,prevent的区别和各自用法.详求：preserve ,defend ,protect ,prevent的区别和各自用法. protect和preserve都有保护的意思,两者用法上有什么区别 preserve sb from 与 protect sb from 区别 protect,prevent,preserve 的区别 最好能举例说明 preserve和reserve怎么区别? conserve和preserve的区别? 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 和 protect 的区别如_____ the forest应该填什么 在具体分析一下有什么区别 最好有例子 preserve&reserve 的区别名词和动词分别的区别 preserve reserve的区别 关于protect和defend.protect和defend有什么区别?protect from 和defend from 呢? protect和prevent短语和区别 protect和perspective有什么区别 conserve和preserve的区别?请不要复制词典的内容!最好给出一些例子来, conserve和preserve有什么区别,感觉两个词一样啊 preserve和conserve都有保存的意思那他们的区别是什么呢 reserve,preserve,conserve的详细区别?