孩子们坐在雪橇上，由阿拉斯加犬拉着在雪地上滑行。

The children sat on the ___sledge as it glided over the snow, pulled by Alaskan dogs.

工人们用大锤把木桩敲进地里。

The workers drove the wooden posts into the ground with a heavy ___sledge.

我们在结冰的湖面上快乐地滑雪橇。

We had fun ___sledding on the frozen lake.