1. The soldiers bivouacked in the forest for the night.
士兵们在森林中露天宿营过夜。

2. We bivouacked in a meadow near the river during our hiking trip.
在徒步旅行期间，我们在河边的一个草地上露宿过夜。

3. Due to bad weather conditions, they had to bivouac on the mountain instead of reaching their intended campsite.
由于恶劣的天气条件，他们不得不在山上露营，无法到达预定的营地。