Coalfaces
n. （煤礦井里的）采煤工作面, 采掘面( coalface的復數形式 )
??? 情景例句
Let's get together and have a group study session.
咱們在一起組織一個學習小組吧。
The tongue is not made of steel,yet it cuts.
舌頭不是鋼，一動把人傷。
One moment we were walking along the top of a hill and now we could see no more than about thirty metres ahead of us.
一時間我們還在山頂上行走，而現在30公尺開外的地方我們都看不清了。