beaverscastoridae河狸: Caster fiber; beaver科: a branch of academic or voca ...山河狸科: mountain beavers河狸: caster fiber; beaver (旧称“海狸”)袋狸科: bandicoots; peramelidae下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:河狸科,即可在微信中查询翻译