资料来源 : pyDict

壶洞

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Pothole \Pot"hole`\, n.
   A circular hole formed in the rocky beds of rivers by the
   grinding action of stones or gravel whirled round by the
   water in what was at first a natural depression of the rock.

资料来源 : WordNet®

pothole
     n : a pit or hole produced by wear or weathering (especially in
         a road surface) [syn: {chuckhole}]