名詞 field mouse:

1. any of various small mouselike rodents of the family Cricetidae (especially of genus Microtus) having a stout short-tailed body and inconspicuous ears and inhabiting fields or meadows
   同義詞：vole
2. any nocturnal Old World mouse of the genus Apodemus inhabiting woods and fields and gardens
   同義詞：fieldmouse