名词
中文翻译：羽毛背
同义词：
['feathered back', 'feathery back']
例句：
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1.The bird's featherback is so soft and smooth.
这只鸟的羽毛后背非常柔软光滑。
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2. The hunter carefully aimed his arrow at the featherback of the deer.
猎人小心翼翼地瞄准了鹿的羽毛后背。
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3.The artist painted a beautiful featherback on the wall.
艺术家在墙上画了一个美丽的羽毛后背。