a sudden strong feeling of fear that prevents reasonable thought and action

a state of panic 恐慌状态

Panic spread through the crowd as the bullets started to fly. 子弹开始满天飞，人群惊慌起来。

Carmel was in a panic about her exam. 卡梅尔很害怕考试。

He got in(to) a panic that he would forget his lines on stage. 他慌张起来，怕自己在台上会忘记台词。

to suddenly feel so worried or frightened that you cannot think or behave calmly or reasonably

Don't panic! Everything will be okay. 别惊慌，一切都会没事的！

The sound of gunfire panicked the crowd. 枪声使人群惊慌失措。

The boss always panics over/about the budget every month. 老板每月总会对预算惊恐不安。