名词
中文翻译：前线
同义词：
['front', 'frontier', 'forefront']
例句：
-
1.The soldiers were ordered to the front line to fight the enemy.
士兵们被命令到前线去抵抗敌人。
-
2. The doctor was at the front line of the battlefield.
医生在战场的最前线。
-
3. The firefighters rushed to the front line to put out the flames.
消防员冲向前线扑灭火焰。