to construct a building from the ground up里的up怎么理解?

To construct a whole house from the ground up is not easy.请问 A bird had snatched up the snake from the ground and then dr unable to construct a Datum from the specified from the ground up.什么意思?急!在线等! 翻译They’re building a new house up the street from me They’re building a new house up the street from me. I was fortunate to pick up a wallet ______ on the ground on digging up the ground to plant vegetables什么意思 I climbed up to the top of the building ______I could have a We went up to the roof of the building,from____ we had a goo We went up to the roof of the building,... 英语翻译The government wanted to put up a big office building in