bull.frog

bullfrog的音标和读音：
DJ音标发音： [ˈbulˌfrɔ:g, -ˌfrɔg]
KK音标发音： [ˈbʊlˌfrɔg, -ˌfrɑg]

bullfrog的词性：
n.（名词）

1. Any of several large, heavy-bodied frogs, chiefly of the genus Rana and especially R. catesbeiana, native to North America and having a characteristic deep, resonant croak.
牛蛙：一种大的，体重的蛙，蛤蟆 属，尤指 牛蛙 原产于北美，有很具特色的低沉的，洪亮的叫声