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- The average age of the boys in this class is fifteen. 本班男生的平均年龄是十五岁。
- Brass is an alloy of copper and zinc. 黄铜是铜和锌的合金。
- I don't think he looks his age of seventy. 我感到他看起来不像70岁的人。
- Brass is formed by the fusion of copper and zinc. 黄铜是由铜和锌熔合制成的。
- The age of majority is eighteen. 成年的法定年龄是18岁。
- He ran away from home at the age of thirteen. 他十三岁那年就离家出走了。
- A large cooking pot made of copper or often of iron. 金属锅用铜或铁铸成的大煮锅。
- At the age of thirty, Mary began to lose colour. 玛丽在30岁的年纪就红颜渐逝了。
- She was orphaned at the age of ten. 她在十岁时成为孤儿。
- My father retired at the age of 60. 我父亲六十岁时退休了。
- My grandmother got married at the age of seventeen. 我的祖母十七岁就结婚了。
- He was already balding at the age of 25. 他25岁就秃顶了。
- Cole popped off at the age of twenty. 科尔在二十岁时突然死去。
- Zambia is the world's largest exporter of copper. 赞比亚是世界上最大的铜输出国。
- He lived to be [to the age of]80. 他一直活到了80岁。
- The average age of the students is 19. 学生的平均年龄是19岁。
- The fusion of copper and zinc make the metal brass. 铜和锌的熔化制成黄铜。
- Thin wires easily melt if they are made of copper. 如果用铜制细导线极易熔化。
- He was composing at the piano at the age of seven. 他7岁时就会钢琴作曲。
- An alloy of copper with10 percent tin. 炮铜一种掺有10%25的锡的铜合金