新目标九年级Unit13Unit13Rainydaysmakemesad.SectionAPeriod1Unit13Rainydaysmakemesad.SectionAPeriod1Howdoyoufeelaboutthemusic?Happy?...
Theearthispolluted.airpollutionThefactoriesthatburncoalpollutetheairwithalotofblacksmoke.n.煤炭Factoriesputwasteintotheriver.water...
