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- Closing time at this pub is eleven o' clock. 这酒馆的打烊时间是十一点。
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- What color is copper sulphate solution? 硫酸铜溶液是什么颜色？
- Copper and gold are both metals. 铜和金都是金属。
- Copper has less resistance than lead. 铜的电阻比铅的小。
- The child's mouth formed a big O in surprise. 那孩子惊奇得张著嘴像个大O字。
- What color is copper sulfate solution? 硫酸铜溶液是什么颜色？
- A copper coin formerly used in India and Pakistan. 安那旧时在印度和巴基斯坦使用的铜币
- Ornamental copper pans hung on the wall. 墙上挂着装饰性的铜盘。
- This mountain road leads to the copper mine. 这条山路通向那个铜矿。
- Brass is an alloy of copper and zinc. 黄铜是铜和锌的合金。
- We fuse copper and tin to make bronze. 我们把铜和锡熔制成青铜。
- They will mine copper there in the valley. 他们将在那边的山谷开采铜矿。
- Brass is formed by the fusion of copper and zinc. 黄铜是由铜和锌熔合制成的。
- Copper conducts electricity better than iron does. 铜的导电性比铁强。
- Have you finished lunch already? It's only12 o' clock! 你已经吃过午饭了吗？现在才12点。
- Hello. I'd like to reserve a table for two for eight o' clock, please. 你好，我要订一张今晚八点两个人的餐桌。
- A large cooking pot made of copper or often of iron. 金属锅用铜或铁铸成的大煮锅。
- Mark hauled o ff and threw a touchdown pass. 马克突然传出一个触地球。
- The line AB intersects the line CD at O. 直线AB与直线CD相交于O点上。
