Be used to do_标签(Tags)

Be used to do

be + done 结构，被用做、被用于，表示某物或某种方法被用于完成某项任务或达成某个目的。

used to do sth.^{过去常常做某事}	I used to fly to South America from Europe. ^{from Europe to South America.} He used to work in a small shop. Roy Trenton used to drive a taxi. Our dog, Rex, used to sit outside our front gate and bark.
Be used to do ^{被用于(非习惯)}	The profits from the exhibition were used to build museums and colleges. ^{被用于建造博物馆} It has been used to detect gold buried in the ground.^{被用于探测埋藏的黄金}
Be used to sth. ^{已经习惯或适应了}	I am used to traveling by air. ^{习惯了坐飞机旅行} I am used to working long hours. ^{习惯长时间工作} She is used to the cold weather now.^{习惯了寒冷的天气}