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- I tried to call Mr. Cooper, but the line is busy. 我试着打电话给库珀先生，但是线路忙。
- Study on Anti-Corrosion Performance of Thin Sol-Gel-Derived Films on the Surface of Cooper Alloy 铜合金表面溶胶-凝胶涂层抗腐蚀性能的研究
- It's an alloy not readily drillable. 这是不易钻洞的合金。
- Brass is an alloy of copper and zinc. 黄铜是铜和锌的合金。
- A stable, corrosion-resistant zirconium alloy. 锆合金一种稳定而防腐蚀的锆合金
- An alloy of two or more metallic elements. 合金两种或多种金属所合成的金属
- Ornaments, objects, or utensils made of this alloy. 黄铜制品用这种合金制的装饰品、物件或器皿
- A maker or repairer of barrels and tubs; a cooper. 桶匠制桶工人或修桶工人
- An alloy composed of lead, tin, and zinc. 铅锡锌化合物由铅、锡和锌组成的一种合金
- Speciality: Product structure: tinning cooper etc. 产品构造：由镀锡铜等成分构成。
- I hardly ever know that aluminium alloy could be as strong as steel. 我几乎从来不知道铝合金竟会和钢强度一样大。
- What became of Mr. and Mrs. Cooper? 库珀夫妇发生什么事了?
- Cooper alloy 铜合金
- Mr. Cooper is occupied at the moment. 库柏先生现在很忙。
- I'd like to make an appointment with Mr. Cooper. 我想和库柏先生约一下。
- Would you please tell Mr. Cooper that I'm here? 请您告诉库柏先生我在这里，好吗?
- I tried to call Mr. Cooper,but the line is busy. 我试着打电话给库珀先生，但是线路忙。
- I tried to call Mr. Cooper,but the line was busy. 我想给库柏先生打个电话，但一直占线。
- He is several years junior to Mrs Cooper. 他比库珀太太小几岁.
- No, I don't know who this Troy Cooper is. “不，我不知道你所说的这位卓伊?库珀是谁。”
