Unless these questions are solved, the region will remain apowderkeg.
除非这些问题得以解决，否则该地区会一直是个火药桶。
《柯林斯英汉双解大词典》
2
What was once a forest becomes a virtual powderkeg of untapped fuel.
森林就变成了未开启的虚拟引火气罐。
3
On the night of 7 September 1776, the Turtle tried to attach akeg of powder to the British ship Eagle. The attempt failed and the powder exploded harmlessly.