The event study method的用法和樣例：
例句
- Research on the effect of shareholding division reformation uses the way of event study, which is an important researching approach.
摘要股權分置改革的效應研究采用事件研究方法。 - The study of the Tunguska event is important because past collisions with extraterrestrial bodies have had major effects on the evolution of the earth.
通古斯卡事件研究之所以重要，是因為來(lái)自地球以外的天體撞擊，曾對地球的演化造成重大影響。
