upper-storyCOCA¹⁴⁹²³⁷ 基本例句 na.二楼;头脑;🌏上木;在上层故事 The police and witnesses said some victims were executed with handguns while other students were hurt jumping from upper-story windows of the classroom building where most of the killings occurred. 警方和目击者称有些受害者被手枪击毙,另外还有学生从袭击发生地的高层教学楼夺窗跳下时受伤。 blog.sina.com.cn