The mineral malachite contains the elements copper, hydrogen, carbon, and oxygen.矿物孔雀石包含的元素铜, 氢, 碳和氧.The main copper minerals are malachite, chrysocolla, little chalcopyrite, chalcosine and even little bornite and covell...
All the attempts to petition the Congress had failed...所有向国会请愿的努力均告失败。They began to petition the queen.他们开始企求女王.We recently presented the government with a petition signed by 4,500 people.最近我们向政府递交了有4,500人签名的请愿书。Everyone...