问题描述：
修改英文句子
The crystal itself,may be easily caught many impurities,but also on behalf of,the crystal is always clear and transparent.
请修改以上句子不当的地方并翻译.
The crystal itself,may be easily caught many impurities,but also on behalf of,the crystal is always clear and transparent.
请修改以上句子不当的地方并翻译.
问题解答：
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