Last minute our diver was still swimming in the Pacific with flippers, and the next minute he was doing a breaststroke in a fire bucket 300 feet in the air.

前一分钟我们的潜水员还在太平洋里用脚蹼游水，下一分钟他就在300英尺高空的一个救火水桶里做蛙泳了。

Penguins use their wings as flippers.

企鹅把翅膀当作鳍来使用。

Seals, turtles and penguins have flippers.

海豹、海龟、企鹅均有鳍状肢。

Do you rent masks and flippers?

你出租面罩和蛙鞋吗？

You try running in flippers!

你试着用脚蹼跑！