名词
中文翻译：月球球体
同义词：
['moon rock', 'lunar rock']
例句：
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1.The moonballs were a popular gift at the festival.
在节日上，月球球是受欢迎的礼物。
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2. The astronauts found a moonball on the moon's surface.
宇航员们在月球表面发现了一个月球球。
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3.The moonball was so small that it could be easily overlooked.
月球球太小了，很容易被忽视。