Ithinkthatwhatwehavedonesofarinenvironmentalprotectionisn'tenough.
Ithoughtthatwearenotpollutedintheprotectionenvironmenttheaspectalsotodoinsufficiently.
Ithinkwearenotpollutedenvironmentprotectionisdoingenough.
wehavemorethingstoimproveonprotectingenvironmenttobeunpolluted.
Idon'tthinkwehavedonemuchenoughtoprotecttheenvironmentfrompollution.
说法太多了,