霍金宇宙大探索Stephen Hawking is a British scientist1. He is one of the most famous scientists in the world. He is an expert2 on black holes (黑洞). He studies (研究) the beginning and the end of the universe (宇宙).
21世纪报社版权所有，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 京ICP备13028878号-12京公网安备 11010502033664号
京公网安备 11010502033664号
