vernbergCOCA¹⁹⁰⁸³¹ 基本例句 🌏韦尔伯格 To take a closer look at one effect of bullying in elementary schools, Vernberg and his colleagues followed a group of almost600 students in grades3 through5 at six schools for a year. 为了进一步调查小学的持强凌弱现象带来的后果，温伯格和他的同事为期一年，追踪了6所学校，近600名三年级到5年级的学生。 yeeyan