根据英文解释,写出相应的英文单词
1.makeair,rivers,ect.dirtyanddangerous
2.awordthatyouusetosaywhatispossibleortruewhenanotherthinghappenortrue
3.somethingboughtorgotasagifttoremindapersonoraplace
4.arailwaysystemunderthegroundofacity
5.belongingtoacertainplaceorarea
6.beingrelatedwiththewestpartoftheworld
7.failtohit,catch,reach
我把2的完整版发出来
2.------(awordthatyouusetosaywhatispossibleortruewhenanotherthinghappenortrue)youpressthebutton,themachinewillstart.
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