短语词组短語laggard pupils 落後的學生laggard manufacturers 吊車尾制造商laggard student 詳細繙譯Laggard Outperforming 落後股的上漲laggard reason 落後原因Laggard d 遲鈍的laggard transformation 轉變滯後性laggard chromosomes 落後染色躰 返回 laggard