Front line
01
前线, 第一线
the area where opposing forces meet or engage, often in a military conflict
例子
The soldiers were positioned along the front line, guarding the border.
士兵们被部署在前线沿线，守卫着边界。
02
前线, 第一线
the center of action or the most critical position in a struggle or activity
Slang例子
Healthcare workers were on the front line during the pandemic.
医护人员在大流行期间处于第一线。
