The main copper minerals are malachite, chrysocolla, little chalcopyrite, chalcosine and even little bornite and covellite. 矿石主要含铜矿物为孔雀石 、 硅孔雀石, 少量的黄铜矿 、 辉铜矿及极少量的斑铜矿和铜蓝等.
该队还因其良好的体育精神及公平竞争精神而受到了表扬。The team also won praise for sportsmanship and fair play.事情做得漂亮时，给自己一点表扬。If you do something well, give yourself a pat on the back.他们一直在倾听人们的牢骚、抱怨和表扬。They have been listening to people's gr...
The English judiciary wear their traditional horsehair wigs.那位英国法官戴着他们的传统马鬃假发.Picture yourself in the 17 th century, looking sharp with a bundle horsehair on your head.想像自己身处17世纪, 头上戴著马毛假发,一副精神抖擞的模样.Around 1840 the floor...
The sound waves of the voice could be diagramed as in B.这个声音的声波如图B所示。These procedures are diagramed as below.这些程序可图示如下.The architect diagramed the floor plan to show how he would divide the office space.建筑师画了楼面的平面图以表示他将如...