'Then fetch me some, ' said the Whale, and he made the sea froth up with his tail.

“那就给我拿来一些吧，”鲸鱼说着，用他的尾巴把海水搅得翻腾起来。

During mating, the male frog uses its legs to stir it into a foam, just like you'd use running water to froth up a bubble bath.

在交配过程中，雄性青蛙用它的腿把它搅成泡沫，就像你用流水给泡泡浴起泡一样。