n. 前线; [体]锋线(包括大前锋, 小前锋, 中锋)
1. The doctors and nurses are working on the frontline to fight the pandemic.
医生和护士在前线抗击疫情。
2. Many soldiers serve on the frontline during times of war.
许多士兵在战争时期在前线服役。
3. The company is focusing on frontline customer service to improve satisfaction.
公司专注于前线客户服务以提高满意度。