at the coalface idiom UK
在实际工作岗位;在工作现场;在工作第一线
doing the work involved in a job, in real working conditions, rather than planning or talking about it
At the coalface with a deadline looming, you sometimes feel under a lot of pressure. 在工作第一线切身面对最后期限的逼近，你有时会感觉压力很大。