越野旅行包括跨越一条汹涌的急流。

The field trip involved crossing a raging torrent.

《柯林斯英汉双解大词典》

那个时期，越野旅行是一件危险的事情。

In those days, the trip across country was a dangerous undertaking.

《牛津词典》

即使您从未有过家庭度假(或者已经过去很长时间了)，我也认为您会看到这一越野旅行比喻的意义。

Even if you've never taken a family vacation (or it's been a long time), I think you'll see the value of this cross-country trip metaphor.

youdao