laser [ˈleɪzə(r)]

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单词级别

第5级

基本释义

n.激光

英英释义

(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

参考例句

We keep a laser record. 我们保存激光唱片。
Laser beams are also used in surgery. 激光束还可用于外科手术。

laser [ˈleɪzə(r)]

单词级别

基本释义

英英释义

参考例句

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