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

那个时期，越野旅行是一件危险的事情。

《牛津词典》

That is, we've taken a lengthy car trip across country — many of us more than once.

那就是，我们驱车进行了很长一段越野旅程—许多人还不止一次。

youdao

We both liked to go for long walks and occasionally took a day-long walk across country together.

我们都喜欢漫步，偶尔还一起花上一整天走过整个乡间。

youdao

Wagon trains -- groups of wagons -- rode in four lines across the land when they passed through dangerous country.

VOA: special.2009.03.30

You really had a remarkable success in academics, in the administrative... You've taught at great universities across the country.

您在学术界，行政管理层，都取得了巨大的成功。,您曾在多所美国名校执教。

普林斯顿公开课 - 人性课程节选

And I think most Americans, our soldiers, most Americans across the country really do want to do good in the world.

我觉得大多数美国人，我们的士兵，全美国的大多数人,是真心想做些好事。

普林斯顿公开课 - 国际座谈会课程节选

They didn't want to pile up into the car and drive across country because they couldn't afford the gasoline for it.

NPR: August Unemployment At Five-Year High

The addition is about 20 milliseconds locally, 25 milliseconds half-way across the country and 75 milliseconds to reroute traffic fully across the country.

FORBES: Magazine Article

It's roughly a five-day trip across country, assuming the driver follows hours-of-service regulations that limit how long a driver can go in a given stretch.

FORBES: Join The Cold Train