grey squirrel
noun
1- an American tree squirrel with mainly grey fur北美灰松鼠。
1.1
- Genus Sciurus, family Sciuridae: four species, in particular Sciurus carolinensis, native to eastern North America and introduced to Britain and elsewhere.松鼠属, 松鼠科：4种, 尤指北美灰松鼠, 原产于北美东部, 后被引入英国等地。