Baleen whales often appear in this region. Be careful!这一带经常有须鲸出没, 要注意安全啊!But big baleen whales often run silent.而大型须鲸常常不声不响地前行.The collection of small marine crustaceans of the order Euphausiacea are the principal food b...

baleen的音标：baleen的英式发音音标为：[bə'li:n]baleen的美式发音音标为：[bə'lin]...

baleen whale的音标：baleen whale的英式发音音标为：[bə'li:n hweil]baleen whale的美式发音音标为：[bə'lin hwel]...

长须鲸...

n.鲸须...