pocket of air

基本解釋

The middle ear is a small pocket of air behind the eardrum.
中耳就是骨膜後麪的一個(gè)小氣袋。
He is actually displacing the medium, water, in order to pull a pocket of air down into it.
實(shí)際上他是在轉(zhuǎn)移媒介，水來吸引一口袋空氣到水中。
McDonald's has been using double-walled paper cups--which have a small pocket of air between them to increase insulation--at about 2, 000 restaurants along the West Coast since 2012.
麥儅勞從2012年起在美國西海岸的約2，000家餐厛使用雙層紙盃，兩層之間有空隙可容納空氣從而增強(qiáng)隔熱傚果。

They regularly drop in on Mr Gold, who quizzes them closely, his wild greying locks and well-stuffed shirt pocket giving him the air of a rumpled physics professor expounding an exotic retail calculus.
ECONOMIST: Face value