看我们如何侦破笔记本电脑丢失案。WHEN I walked toward my Forensic Science class, our teacher, Mr Keller, a humorous and easy-going man, was kneeling down (跪下) by the doorway and staring at the floor.
中报二十一世纪(北京)传媒科技有限公司版权所有,未经书面授权,禁止转载或建立镜像。 主办单位:中国日报社 Copyright by 21st Century English Education Media All Rights Reserved 版权所有 复制必究 网站信息网络传播视听节目许可证0108263 京ICP备2024066071号-1京公网安备 11010502033664号