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

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。

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To know which scenario was correct, the researchers needed to find a transitional form — with characteristics that fall somewhere between bottom-dwellers and the permanently 'rafting' janthinids.

为了研究出哪种猜想是正确的，研究人员需要找到过渡类型，既有底栖蜗牛的特性也有漂浮泡泡蜗牛的特征。

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Bryophyte is a kind of higher plants with small size and simple structure, being the transitional form from aquatic to terrestrial and the most original group of existing higher plants.

苔藓植物是一种形体微小、结构简单的高等植物，是水生向陆生的一种过渡形式，是高等植物中最原始的类群。

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The Obama administration should back their efforts to form a transitional government that can begin to govern rebel-controlled areas of Syria as soon as possible and put to rest any doubts about our support.

CNN: Rubio: Syrians must feel U.S. support

Members of delegation of former king Mohammad Zahir told CNN that the Northern Alliance and the king's factions, which together make up a majority of the conference participants, have agreed to form a transitional council of 120 to 200 members.

CNN: Northern Alliance rejects U.N. force plan

He said Britain welcomed the NTC's pledge to form an inclusive transitional government before democratic elections.

BBC: Hague welcomes Libyan liberation