他沿着自己的足迹回到了雪洞，因为如果没有住的地方，他那天晚上可能会死掉。

He followed his tracks and returned to the snow cave, because without shelter, he could die that night.

youdao

然后就出发，在雪地上留下你自己的足迹。

Then go out and make your own tracks in the snow.

youdao

踏着别人的足迹前行，永远找不到自己的足迹。

Went before stepping the other people's footprint, can not find an own footprint forever.

youdao