Bejr贝尔bev.有；在；是；到达；拜访be common knowledge人所共知Bessemer furnaceman酸性转炉炉工(钢吹炼)be drowned in sleep酣睡be based in reality有事实根据be on one's way outbe on the safe side为慎重起见be hidden from view被遮蔽得看不见be on a false scentv.追踪的线索不对be impracticable toconj.难以(是行不通的)be of considerationprep.值得考虑(重要的)