士兵们在城墙上采取了防御姿态。

The soldiers took a ___defensive position on the city walls.

每次提到他的工作表现时，他都会变得很防备。

He gets ___defensive whenever someone mentions his work performance.

我们的防守队员在比赛中表现出色。

Our ___defensive players performed exceptionally well in the match.