large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific
同义词：finback whale, fin whale, common rorqual, Balaenoptera physalus
finback详细解释
fin.back n.（名词）A rorqual, especiallyBalaenoptera physalus of the Atlantic and Pacific coasts, that attains a length of about 2 meters (70 feet). Also called fin whale 长须鲸：温鲸，尤指大西洋和太平洋沿岸的须鲸 ，体长大约2米（70英尺） 也作 fin whale
