It was the first time in his life that he'd slept out of doors.

那是他有生以来第一次露宿。

《牛津词典》

We slept out in the open last night. We didn't even use a tent.

昨晚我们睡在野外。我们连帐篷都没用。

youdao

The inspector went round asking why the men slept out in this weather.

检察官巡视了一周，并问那些男人为何在这样的天气里还在外面露宿。

youdao

The men at the camp would run out of the buildings where they slept, thinking it was an earthquake.

VOA: special.2009.01.24

Many had slept out in the open for the past few nights, braving last week's sub-zero temperatures.

BBC: India

He had only slept seven out of the last hundred hours.

NPR: Evacuating New Orleans �� But to Where?

The stench from overflowing toilets and drainpipes made some cabins uninhabitable and many people slept in corridors, while others took bedding out into the open to escape the heat and foul smell.

BBC: Carnival Triumph passengers disembark in Alabama