这种鲸保留了尾巴，没有现代水生鲸类动物用于行动的主要部位，尾片。

The whale retained a tail and lacked a fluke, the major means of locomotion in modern cetaceans.

youdao

然而，专家认为巴基鲸是已经灭绝的食肉哺乳动物中爪类和鲸类之间的过渡物种。

Other features, however, show experts that Pakicetus is a transitional form between a group of extinct flesh-eating mammals, the mesonychids, and cetaceans.

youdao

“巴基鲸”化石由一个原细胞的完整头盖骨所组成，这是现代鲸类祖先中已经灭绝的一个物种。

The fossil consists of a complete skull of an archaeocyte, an extinct group of ancestors of modern cetaceans.

youdao

It's Dickens in part, that stereotype of old London, of the urban working class, but it's not just Dickens. Moby Dick is here too.

其中有狄更斯出现，有对于伦敦及当地工人阶级的,刻板印象，不仅仅是狄更斯的影子，还有《白鲸记》

耶鲁公开课 - 1945年后的美国小说课程节选

So you, like, read Emerson, Melville - "Moby Dick", stuff like that.

所以，那个阶段，你能读到爱默生，还有《大白鲸》的作者梅尔维尔。

写作课程比较难 - SpeakingMax英语口语达人