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- common black opal 普通黑蛋白石
- Lightning Ridge in New South Wales is home to the remarkable black opal, while Coober Pedy in South Australia mines the stunning white opal. 新南威尔斯的闪电山脉盛产瑰丽的黑色奥宝，而南澳大利亚的高巴柏则以出产晶莹透彻的白色奥宝见称。
- The species was first identified in Budapest 20 years ago. The ants look like a common black garden variety. 这种蚂蚁20年前首度在布达佩斯被发现，牠们外形就跟一般的黑色花园蚂蚁很类似。
- In the absence of meat, common black beans are a primary source of protein, minerals and vitamins in much of the developing world. 在肉类供应紧缺的时期，普通的黑豆是大多数发展中国家人民蛋白质、物质和维生素的主要摄取来源。
- An extremely hard mineral, aluminum oxide, Al2O3, sometimes containing iron, magnesia, or silica, that occurs in gem varieties such as ruby and sapphire and in a common black, brown, or blue form used chiefly in abrasives. 刚玉一种极为坚硬的矿物，氧化铝，Al2O3，有时含铁、氧化镁或硅土，存在于各种宝石中，如红宝石、蓝宝石，并且在磨蚀剂中以普通的黑色、棕色或蓝色形式出现
- Nutrition and health function of black food were analyzed in this paper.And the characteristics of common black food were discussed.Further more,its development prospect was forecasted. 分析了黑色食品的营养价值和保健功能,讨论了常见的黑色食品的特点,并预测了其发展前景。
- Knowledge without common sense counts for little. 光有学问而无常识，则这种学问无甚价值。
- It's a common superstition that black cats are unlucky. 认为黑猫不吉利，这是一种普遍的迷信思想。
- Salt is a common food preservative. 盐是一种常用的食物防腐剂。
- There is still no cure for the common cold. 目前仍没有治愈感冒的良药。
- Huxley, I feel, has much in common with Wells. 我觉得赫胥黎和威尔士有很多共同之处。
- Rabbits and foxes are common in Britain. 兔子和狐狸在英国很常见。
- Common tastes form a bond between the two men. 共同的爱好使两人结交为朋友。
- The two sisters have nothing in common. 两姐妹没有什么共同之处。
- She hasn't an ounce of common sense. 她一点儿常识也没有。
- He was regarded as heretic by the common people. 他被大众视为异教徒。
- black opal 黑蛋白石
- Women's underclothes are a common fetish. 女人的内衣裤是常见的能引起性快感的恋物。
- They made an alliance against the common enemy. 他们联合起来抵御共同的敌人。
- He behaves as if he had no common sense. 他的言行就好像没有常识似的。
