| 单词 | light pen |
| 释义 | light penBrE /ˈlaɪt pen/ NAmE /ˈlaɪt pen/ noun a piece of equipment , shaped like a pen , that is sensitive to light and that can be used to pass information to a computer when it touches the screen （用于向计算机输入信息的）光笔a similar piece of equipment that is used for reading barcodes 光笔；条码识读器 |
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