The pilot warned passengers that the plane might hit an air pocket during descent.

機長提醒乘客，飛機下降時可能會遇到氣穴。

Our flight to Tokyo dropped suddenly when we flew through an air pocket.

我們飛往東京的班機穿過氣穴時突然往下掉。

The travel agent explained that air pockets are common over mountain ranges in summer.

旅行社專員解釋說，夏天在山脈上空經常會遇到氣穴。