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1.The doped diamond was a symbol of wealth and status in ancient times.
掺杂钻石在古代是财富和地位的象征。
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2.The diamond is so pure that it can be used as a doped diamond.
这种钻石是如此纯净，以至于它可以用作掺杂钻石。
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3.The doped diamond has become a popular choice for engagement rings.
掺杂钻石已成为订婚戒指的热门选择。