- the place deep inside a mine where the coal is cut out of the rock（煤矿井里的）回采工作面，采煤工作面
- The miners had to crawl to reach the coalface.矿工们不得不爬到煤层。
Idioms - (British English) where the real work is done, not just where people talk about it在工作现场；在工作第一线
- Many of the best ideas come from doctors at the coalface.许多最好的意见都来自临床医师。🔊🔊