英语词汇“river porpoise”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	river porpoise
释义	river porpoise noun Any of several porpoises (family Phocoenidae) occurring in rivers. Origin Mid 18th century; earliest use found in Richard Brookes (fl. 1721–1763), physician and author.
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river porpoise