沥清铀矿和铜铀云母比纯铀的放射性强得多.Pitchblende and chalcolite are much more radioactive than uranium itself.铜铀云母 ( 铜和铀的磷酸盐结晶体 ) 的放射性是铀放射性的两倍.Chalcolite ( crystallized phosphate of copper and uranium ) is about twice as radioactive as u...
That grocer always overcharges.那个杂货商总是要高价.That grocer never overcharges.那杂货商从不多要价.The man is an honest tradesman. He never gives short measure nor overcharges his customers.这人买卖公道, 从不亏秤,也不多要钱....