Bullfrog

['bʊlfrɒg] or ['bʊlfrɔɡ]

(noun.) largest North American frog; highly aquatic with a deep-pitched voice.

安格斯校对--From WordNet

(n.) A very large species of frog (Rana Catesbiana), found in North America; -- so named from its loud bellowing in spring.

伊恩校对