牛群在湿地上吃草。Cows were grazing on the marshes.她赶着牛群穿过荒野.She drove the herd of cattle through the wilderness.他精心照料着牛群,不使它们瘦下来.He took care to keep the cattle from falling off....
它们有哑铜的，古铜的和镀银的。They are available in polished brass, antique brass or silver-plate.萨尔瓦多每年生产10万吨纯铜。El Salvador produces 100,000 tons of refined copper annually.他用铜、不锈钢和银制造装饰性器皿。He makes decorative vessels in copper, stain...