hysteria

The sudden market crash caused mass hysteria among the investors.

(Chinese) 股市的突然崩盘在投资者中引起了大规模的歇斯底里。

The crowd dissolved into hysteria as their favorite singer walked onto the stage.

(Chinese) 当他们最喜欢的歌手走上舞台时，人群陷入了狂热的歇斯底里状态。