frontline

前线、火线军事

Fresh troops were sent to the frontline last night.

生力军昨晚被派往前线。

第一线、最前线

Nurses stood on the frontline during the outbreak.

疫情爆发期间，护理人员站在第一线。

锋线体育

Injuries have left the team's frontline badly weakened.

伤兵不断，让球队的锋线战力大减。

第一线的、基层的

Frontline staff deal with angry customers every single day.

第一线的员工每天都要面对愤怒的客人。

前线的、最前方的军事

Frontline units received new equipment before the winter.

前线部队在入冬前领到了新装备。