以下为句子列表：
英文: ENDOSCOPE - A flexible instrument containing fiberoptic bundles and a light source used by physicians to examine the esophagus, stomach, and duodenum.
中文: 内窥镜——一种柔软的器具，包括光导纤维束和光源，内科医师用来检查食道，胃，和十二指肠。
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英文: For example, one cannot bring out any of its mass, or receive a reflection back by shining a light source such as a flashlight, or retrieve any information about the material that has entered the black hole.
中文: 举例来说，不能够带走它任何的质量,或藉由照耀例如一个手电筒的一个光源接受反射回来的光,或取回有关已经进入黑洞的物质任何资讯。
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英文: Spotlight: A light source that emits a cone of light.
中文: 聚光灯：它射出的光形成一个锥形。
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英文: The only exceptions are the outdoor setting, where the Hemi Light fakes the light cast by the sky, and the Area Light, where multiple spots fake a light source of finite extension.
中文: 唯一的例外时室外设置，此时使用半光模拟来自天空的光线和区域灯光（使用多盏聚光灯模拟来自无限远处的光源）。
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