1. A rorqual, especially Balaenoptera physalus of the Atlantic and Pacific coasts, that attains a length of about21meters70feet.
长须鲸温鲸，尤指大西洋和太平洋沿岸的须鲸，体长大约21米(70英尺)
2. A rorqual, especially Balaenoptera physalus of the Atlantic and Pacific coasts, that attains a length of about21 meters(70 feet).
长须鲸温鲸，尤指大西洋和太平洋沿岸的须鲸，体长大约21米
3. Other baleen whale s are the blue, fin, gray, humpback, and sei whale s and the rorqual.
其它的须鲸有蓝鲸、鳍鲸、灰鲸、驼背鲸、鳕鲸和鲸。
rorqual
noun
1. any of several baleen whales of the family Balaenopteridae having longitudinal grooves on the throat and a small pointed dorsal fin
Synonym: razorback