Fat is an excellent insulator against the cold.脂肪是极好的抵御寒冷的绝热体。Dry air is a good insulator, but sea water is not.干燥空气是一种好绝缘物, 海水则不是.The atoms of an insulator hold their electrons very tight.绝缘体的原子把电子抓得很牢....
I think most of us don't want to read what's in the newspaper anyway in such detail...我想我们大多数人无论如何都不想如此仔细地去读报纸。This work is one of the series , which studies the lepton identificationin the BES ( Beijing Spectr...
I wrote him a letter and posted it straightaway.我给他写了封信，并马上寄了出去。After training she was posted to Brixton...培训结束后她被派往布里克斯顿。Make sure all checkouts paid by credit card have been posted accordingly.确保所有的信用卡结帐都已及时过账.Big plac...