an air attack

空袭

make fierce attacks against / on

对…发动猛烈袭击

When a plant is under attack, it sends out certain chemicals.

当植物遭受侵害时，会释放出某些化学物质。

a personal attack

人身攻击

He suffered a heart attack.

他心脏病发作了。

Travelers should not feed the wild animals in a close distance because they may attack people.

旅游者不应该近距离喂野生动物，因为它们有可能会袭击人。

Snakes will only attack if you disturb them.

蛇只有在受到骚扰时才会主动攻击。

His remarks were attacked in the newspaper.

他的言论在报纸上受到抨击。

Recently, the H7N9 bird flu has attacked many cities.

H7N9型禽流感最近侵袭了许多城市。