A hole to admit or discharge air; specifically, a spot in
the ice not frozen over.
A fault in a casting, produced by a bubble of air; a
blowhole.
常见例句
1
also an air hole in a casting.
2
a small rectangular free-reed instrument having a row of free reeds set back in air holes and played by blowing into the desired hole
3
the strings stretched between the neck and the soundbox are plucked with the fingers n a pair of curved vertical supports for a lampshade n a small rectangular free-reed instrument having a row of free reeds set back in air holes and played by blowing into the desired hole v come back to v play the harp