在这10年之间, 铁路运货车厢有了冷藏和加温设备, 以保存容易变坏的产品.But during that decade, railroad cars were refrigerated and heated , helping preserve perishable goods.防止啤酒变坏的主要方法是用纯酵母菌株发酵.The principal methods of avoiding spoilage are the use of p...
His confession was greeted with derisive hoots.他的坦白引起了人们嘲讽的嘘叫。There was a short, derisive laugh.有人短促、嘲弄地笑了一声。She gave a short, derisive laugh.她讥讽地笑了笑。...