名词
中文翻译：脏的茧
同义词：
['dirty cocoon', 'contaminated cocoon']
例句：
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1.The caterpillar had been living in a dirty cocoon for months before it finally emerged as a butterfly.
这只毛毛虫在茧里生活了几个月，最终变成了一只蝴蝶。
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2. The worker bees were soiled cocoons that they could not fly back to the hive.
工蜂们是脏的茧，无法飞回蜂巢。
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3. The old lady was soiled cocoons from years of hard work and dedication.
这位老妇人是多年辛勤工作和奉献的结果。