1.He pillowed his head on a pile of books.

1.他枕一书。

2.The little kid stepped right in a pile of dog shit.

2.这小孩正好踩一。

3.There is a pile of rubbish in the corner of the street.

3.的拐角处有一垃圾。

4.The old man stood on a pile of bricks almost as high as a house.

4.那位老人站一跟房子差不多高的砖。