一名奥地利学生向学校开枪,打死数人,使调查人员对动机感到困惑。 An Austrian student carried out a school shooting, killing several, leaving investigators puzzled over the motive.

一名奥地利学生进行了精心策划的学校枪击,造成数人死亡。 An Austrian student carried out a meticulously planned school shooting, leaving several dead. 尽管进行了彻底调查,但当局仍无法确定开枪者的动机。 Despite thorough investigations, authorities have not been able to determine the shooter's motive. 该事件使该国不得不努力解决有关学校安全和心理健康支助的问题。 The incident has left the country grappling with questions about school safety and mental health support.