名詞: n.
1) the small opening in the volcanic ash clouds that allow airliners to fly through without any chance of danger.
2) the opening at the top of a volcano from which forth spews volcanic ash

We were stranded at Heathrow Airport for hours until the airline found some ash hole to fly through.

詞條貢獻者： Hyde  
 貢獻者按積分從高到低進行排序