| 1. | Brass is an alloy of copper and zinc. |
| 黄铜是铜和锌的合金。
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| 2. | Copper conducts electricity better than other materials do. |
| 铜的导电性能比其他材料好。
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| 3. | Is the pipe copper or lead? |
| 这管子是铜的呢还是铅的？
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| 4. | Ornamental copper pans hung on the wall. |
| 墙上挂着装饰性的铜盘。
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| 5. | Did the Copper or Bronze Age precede the Iron Age in Europe? |
| 欧洲的铜器时代先于铁器时代吗?
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| 6. | Copper conducts electricity better than other materials. |
| 铜比其他材料导电性能好。
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| 7. | a coal [ copper , diamond ,gold ,lead, placer ,salt ,silver ]mine. |
| 煤［铜，钻石、金、铅，砂，盐，银］矿。
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| 8. | I made the mousse in my new copper mold. |
| 这泡沫冰淇淋是在我的新铜模中制成的。
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| 9. | dig out minerals such as coal , copper ,diamonds, etc. |
| 挖掘煤、铜、钻石等矿物。
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| 10. | This tool will cut metals like copper and silver. |
| 这种工具能切割像铜和银那样的金属。
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