The organic compounds are mainly benzoic acid anhydride , benzophenone, and so on.生成的有机化合物成分比较复杂,主要成分有苯甲酸酐、苯甲酮等.The uses and synthetic methods on 2,4 - Dichloro - 5 - Fluoro - benzoic acid were described in detail.简要概述了2...
He has made several crossings on the Atlantic aboard S . S . Queen Mary.他好几次乘玛丽皇后号轮船横渡大西洋.They have planted machine - guns at street crossings.他们在十字路口设置了机枪.You'll find deer crossings whichever road you take.不管你走哪条路,...
Li Lan seldom goes out by herself.李兰很少自己单独出门.In Hong Kong people seldom wear galoshes in wet weather.在香港下雨天很少有人穿童鞋.I said that professional writers are solitary drudges who seldom see other writers.我说职业作家是很少能见到其他作家的孤家寡人....
The streets were crammed with gay, laughing crowd.街上挤满了欢乐嬉笑的人群。The house is crammed with priceless furniture and works of art...房子里摆满了昂贵的家具和艺术品。There are lots of books crammed with bright ideas...许多书里都有很多绝妙的想法。Between tw...