The cheetah is generally credited as the world’s fastest animal.

猎豹被公认是跑得最快动。

Ostrich is the fastest animal on two legs.

驼鸟是双腿跑得最快动。

He was awarded the gold medal for being the fastest runner.

他跑得最快,因而获得了金牌。

The fastest runner set the pace and the others followed.

"跑得最快人确定了步速,其他人在后面跟着跑。"

He is ready now to take his place as one of the fastest swimmers in history.

他已有望跻身有史以来游得最快人之列。

The fastest of the recovered is Protozan after it is damaged,and the most slow is Copepoda.

受损伤后恢复最快最原生动，最慢是桡足类。