water vole
noun
1- a large semiaquatic vole which excavates burrows in the banks of rivers水鼠, 河鼠。
1.1
- Genera Arvicola and Microtus, family Muridae: three species, in particular the European water vole (A. terrestris) and the American water vole (M. richardsoni).水属和田鼠属, 鼠科：3种, 尤指欧洲水 （拉丁名A. terrestris） 和美洲里氏田鼠 （拉丁名M. richardsoni）.