How long dose the light reach us from Alpha Centauri是什么意思

How long dose it take you( )from home to school?It usually t how dose the news media inform the public opinion是什么意思? The Daily Dose是什么意思? Do you know how much the US purchases from China alone?是什么意思 How long does ti take for the sunlight to reach the earth? How much dose the train ticket ____ from Harbin to BeIjing? How long was the show ? 是什么意思 How long------you------(get)the books from the library reach the basket是什么意思 the dark clouds keep the light of the sun from us Dose the cloud come from the vapour? How long _you _（get）the books from library?