defensive

/dɪˈfɛnsɪv/

intended or appropriate for defending against or deterring aggression or attack

中文释义：防御的；防卫的

The animal adopted a defensive posture when it sensed danger approaching.

当动物感觉到危险接近时，它采取了防御姿势。

The country built a defensive wall along its border to prevent invasions.

该国沿边境修建了防御墙以防止入侵。