join a clean-up compaign 为什么是join 不是 take park in （这么不是指活动么）

join a clean-up compaign是什么意思? join a clean-up compaign 为什么是join 不是 take park in （这么不是指活动么） 英语新闻中comp up comp up with 等于什么 -what do you want to do with pollution?-It makes me ____ a clean-up campaign.A.want to joinB.want to take partC.wantng to join clean up与clean-up they have comp up with a new way to volunteer的同义句 急用,they have comp up with a new way to volunteer=new way _____ _____ _____ up with to volunteer______ ______. your room is dirty.please___.A.clean up it B.clean it up. Tony could help _______ the city parks.A.clean B.clean up C.clean out D.cleans up 说明原因 join up造句 clean-up和clean up的区别 . It’s your turn to _____ the room, Wang Fang. A. clean up B. clean to C. clean-up D. clean off选什么,为什么 They could help( )the city parks.A.to clean up B.cleaned up C.cleaning up clean up组词 clean-up是不是短语 school clean-up school-clean-up是什么意思 clean it up.