他们几乎完全与外界绝缘了.They were almost completely cut off from the outside world.请检查一下我屋子里电线的绝缘情况.Please examine the insulation of the electric wires in my house.电线通常以一层橡皮或纸绝缘.One often insulates telephone wires by a covering of ...
Fontbonne is a liberal arts college, located in a residential suburb of St. Louis.芳邦大学是一所文科大学，位于圣路易斯市郊的居民区。The President, trying to be cute, said his liberal arts education had not really prepared him for such complicate...