One day when he was seven years old, Stuart was in the kitchen watching his mother make tapioca pudding.

一天，已经七岁大的斯图亚特正在厨房里看他的妈妈做芡粉布丁①。

In this case, they were searching for that Lego soccer ball in a tub of tapioca pudding, so it was not going well.

在这个例子中，他们在一桶木薯布丁中寻找乐高足球，所以进展并不顺利。