We watched the cow suckling her calves.我们看了奶牛如何给小牛喂奶。Chymosin used traditionally in cheese making is an aspartic protease extracted form abomasum of suckling calves.传统干酪加工中使用的凝乳酶是从犊牛皱胃中提取出的一种天冬氨酸蛋白酶.The calves were reall...
Plumbers charge by the hour for their work.水管工人的工作是以小时收费的.Later skilled workers such as electricians and plumbers organized into unions.后来,像电工,管道工等技术工人也组织了工会....skilled workers, such as plumbers and electricians.管道工和电工等技...
Eric gritted his teeth and vouchsafed them a few more drops of brandy...埃里克咬紧牙关，又给他们倒了些白兰地。"He drives like a madman," was all the information he vouchsafed.“他开起车来像疯了一样”是他惠予的全部信息。As we approached the summit we were vouchs...
a hitherto unknown species of moth迄今仍属未知种类的蛾Hitherto he had experienced no great success in his attempt.到目前为止,他的尝试还没获得成功.The polytechnics have hitherto been at an unfair disadvantage in competing for pupils and money.到目前...