Moreover, some of the objects on the moon are still being used including a laser range reflector left by the Apollo 11 crew.
2018年12月四級真題（第二套）聽力 Section C
柯林斯高階英漢雙解學習詞典釋義
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反射器;反光板;反射物
A reflector is a small piece of specially patterned glass or plastic which is fitted to the back of a bicycle or car or to a post beside the road, and which glows when light shines on it.
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反射式望遠鏡
A reflector is a type of telescope which uses a mirror that is shaped like a ball.