标签：holes 相关文章
If it points the camera forward, at first it sees only black. But as it moves toward the heart of the black hole, it encounters the most bizarre place in the universe. A black hole in massive gravity holds everything down to an unimaginably small poi
访谈录2010
annoying 恼人的 at that moment 在那时 be at school 在上学 be at work 在上班 be dismayed 失望 dismay 失望，泄气 doorknob 门把手 finger 手指 get back to 回到 hang up 挂电话 mix 混合，拌和 pastry 面糊 persuade 说服，
新概念英语第二册单词MP3
Unit 95 Scientists Look Forward to the Past Can time travel really be done? Physicists think that travel into future is possible. Einstein's special theory of relativity, published in 1905, predicted that time should be elastic, stretching or shrinki
英语流行话题阅读：语境识词4500
3- A Lost Button Toad and Frog went for a long walk. They walked across a large meadow. They walked in the woods. They walked along the river. At last they went back home to toads house. Oh, that, said toad. Not only do my feet hurt, but I have lost
王培廷分级书单三 Frog and Toad
Residents and businesses in the Indian city of Mumbai, say they are eager to return to normal following the bloody three-day siege that killed nearly 200 people and turned the city into a battle zone. Raymond Thibodeaux has this report from Mumbai w
VOA标准英语2008年(十二月)
A:Its been a long time since I last saw you. Where have you been? B: The exams and plans I have to turn in in are driving me crazy, I dont even have time to sleep. A: Its the same for me. Im up to my neck in work, but at least finals are coming soon
纯正地道美语
By Lisa Schlein Geneva 24 May 2006 Kjell Magne Bondevik examining drought conditions in eastern, central and the Horn of Africa A senior U.N. official says there is still time to avert a catastrophe in the Horn of Africa where eight million drought
2006年VOA标准英语（五月）
In 2016 the Laser Interferometer Gravitational-Wave Observatory, LIGO, made the first accepted detection of gravitational waves. So any time you move a mass it produces a gravitational waveso black holes, like the ones LIGO detected, these are stella
2017年Scientific American(三)月
Beneath the hot-skillet surface of the outback where the baked soil crumbles like ashes, there are treasures to be found. In endless warrens of burrowing and hole, every hour of every day, you can find people digging. And virtually all of these indiv
自然百科2008年
SCIENCE IN THE NEWS - American Space Agency Launches Black Hole Hunter CHRISTOPHER CRUISE: This is SCIENCE IN THE NEWS, in VOA Special English. Im Christopher Cruise. JUNE SIMMS: And Im June Simms. Today we tell about American efforts to seek out and
2012年VOA慢速英语(七)月