名词
中文翻译：底层
同义词：
['undercoat', 'underfur']
例句：
-
1.The dog has a thick underruff that keeps it warm in winter.
这只狗有一层厚厚的底层毛皮，在冬天保持温暖。
-
2. The cat's underruff is soft and fluffy, making it comfortable to sleep on.
猫的底层毛皮柔软蓬松，让它睡在上面很舒服。
-
3. The fox was able to hide its underruff well, which helped it blend in with the forest.
狐狸能够很好地隐藏它的底层毛皮，这帮助它融入森林。