The market appeared to overreact, but this is not the case.市场似乎反应过激, 但事实并非如此。

I overreact to anything sad.我一碰上悲伤的事物就难以控制情绪。

People tend to overreact when they hear about a shark attack.人们听说鲨鱼袭人时往往都会反应过激。