我在后院看到一只土拨鼠在啃胡萝卜。

I saw a ___woodchuck munching on a carrot in my backyard.

这个绕口令问一只土拨鼠能刨多少木头，总是让孩子们咯咯笑。

The tongue-twister about how much wood a ___woodchuck could chuck always makes kids giggle.