Anything that causes you to overreact or underreact can control you , and often does .
任何造成你反应过度或不足的事情都可能控制住你,事情往往如此。
Markets will sometimes overreact , drifting backwards after a lurch , or underreact , taking time to digest the true impact of the new information but overreactions and underreactions should balance out .
Mr. berger said he was concerned that japan could underreact to the confrontation - especially if it senses that the u.s. does not want to back tokyo in the conflict .