While air travel has increased in recent years , there has been no decrease in car travel or car sales .
While air travel has increased in recent years , there has been no decrease in car travel or car sales . While air travel has increased in recent years , there has been no decrease in car travel or car sales . While air travel has increased in recent years , there has been no decrease in car travel or car sales . While air travel has increased in recent years , there has been no decrease in car travel or sales .
While air travel has increased in recent years , there has been no decrease in car travel or car sales .
이 문장의 문법성을 개선하십시오: While air travel has increased in recent years , there has been no decrease in car travel or car sales . 산출: