那位士兵在战场上表现得最勇敢。

That soldier was the ___bravest on the battlefield.

消防员是城市里最勇敢的人，他们总是冲进火场救人。

Firefighters are the ___bravest people in the city, always rushing into burning buildings to save others.

消防员冲进燃烧的大楼救人，他是我们所见过最勇敢的人。

The firefighter rushed into the burning building to save people—he was the ___bravest person we had ever seen.