frontline
adjective/ˈfrʌntlaɪn/
/ˈfrʌntlaɪn/
(also front-line)
[only before noun]- in the most important or dangerous position; doing essential work that puts you at risk
处于最重要或最危险的位置；从事使您面临风险的重要工作 - frontline troops
前线部队 - nurses and other frontline staff
护士和其他一线工作人员 - frontline healthcare workers
一线医护人员
- frontline troops