資料來源 : pyDict

煤坑,炭?

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Coalpit \Coal"pit`\, n.
   1. A pit where coal is dug.

   2. A place where charcoal is made. [U. S.]

資料來源 : WordNet®

coalpit
     n : a mine where coal is dug from the ground [syn: {coal mine}]