Hatched tadpoles swimming to the surface from frogspawn .

孵出的蝌蚪由蛙卵游向水面。

Frogspawn takes a week or so to hatch into tadpoles .

蛙卵需要一个星期左右才能孵化成蝌蚪。

Earthworms , crayfish and tadpoles are examples .

蚯蚓、小龙虾和蝌蚪都是实例。

Notice the tadpoles squirming out of the man 's brain ?

注意到人类大脑中涌出的蝌蚪了吗？

When I was a boy I caught tadpoles with a friend .

当我还是个小男孩时，我和一个朋友捉过蝌蚪。