Trapped in a pocket of air, they had only 40 minutes before the tide flooded the chamber.
他们被困在有一点空气的弹丸之地，再过40分钟洪水就会淹没这间屋子了。
《柯林斯英汉双解大词典》
2
Each pocket of this coat had the air of being in a manner provided against unexpected accidents.
大衣的每个口袋都装着一套应付各种不同意外事件的物品。
3
But there are also some more insidious factors behind the latest round of weather grief, including an unusually strong la Nina, a strange pocket of warm air in Arctic, and overall climate warming.