| 单词 | laser |
| 释义 | laser UK ['leɪ.zər] US [-zɚ] noun countable ADVANCED ■(a device which produces) a powerful narrow beam of light that can be used as a tool to cut metal, to perform medical operations, or to create patterns of light for entertainment 雷射（器） •laser beam雷射光束 •laser surgery雷射手术 |
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