It often buries leftovers as emergency rations for leaner times.

它经常把吃剩的食物埋起来用作匮乏时期的应急口粮。

They lived on emergency rations for weeks before rescuers were able to establish contact with them.

在救援人员能够与他们取得联系之前，他们靠紧急口粮生活了数周。