Front line
01
前線, 最前線
the area where opposing forces meet or engage, often in a military conflict
例
The soldiers braved harsh conditions as they advanced to the front line during the battle.
兵士たちは戦闘中に前線へ進む際、過酷な状況に勇敢に立ち向かった。
02
最前線, 戦線
the center of action or the most critical position in a struggle or activity
Slang例
Teachers are on the front line of the education crisis.
教師は教育危機の最前線に立っています。
