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2008-11-22 23:20
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- British Council
童话故事: 爱丽丝漫游奇境记01
AliceWhooshAlice sat next to her sister. Her sister was reading a book. "What a boring book! It has no pictures or dialog," said Alice.It was very hot. She was getting sleepy. Suddenly, a whi
科学60秒:透镜效应:揭开古老星系面纱
Five very old galaxies are now known to astrophysicists, thanks to Albert Einstein. A century ago, Einstein predicted an effect called cosmic gravitational lensing. Picture a massive galaxy out i...
Christmas tree
英语演讲:A Time to Break Silence by Martin Luther King
I come to this magnificent house of worship tonight because my conscience leaves me no other choice. I join you in this meeting because I am in deepest agreement with the aims and wo...