当我们遇到洪水/地震/火灾/台风时应当如何自救？用英语回答、！！！初二水平、请表明1、2、3、4、
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firstly,whenwemeetflood,wemustgotosomehigherplace.secondly,whenwesufferearthquake,weshouldcalmdownandstayinasaferroom.thirdly,whenweareinfire,wecantakeawettowelwithusandkeeplower.forthly,whenthereisatyphoon,wecouldtrytocatchsomethingtoensurethatwewon'tbeflowedaway.