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- Happy anniversary, Helen and Mark! 海伦、马克,祝你们结婚周年快乐!
- How did you celebrate your wedding anniversary? 你是怎样庆祝结婚周年纪念日的?
- 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?
- They celebrate their wedding anniversary annually. 他们每年庆祝一番结婚纪念日。
- He gave me a necklace as an anniversary gift. 他给我一条项链作为周年纪念礼物。
- 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。
- 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
- She reproached him for forgetting their anniversary. 她责备他竟把他们的结婚周年纪念日忘了。
- 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。
- A golden wedding is the fiftieth anniversary of a marriage. 金婚是结婚五十周年纪念日。
- Copper conducts electricity better than iron does. 铜的导电性比铁强。
- Next Monday is the anniversary of the day I first met you. 下周一是我第一次遇见你的周年纪念日。