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[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:06.51]2001 Passage5 [00:08.42]When I decided to quit my full time employment [00:11.27]it never occurred to me that I might [00:13.38]become a part of a new international trend. [00:16.51]A la
Pushing Goods in Carts Provides Needed Work for E. Congolese In Eastern Congo, formal jobs are rare and locals say survival is by chance. Self-reliance is a way of life, and is immortalized by a golden statue of a boy pushing a wooden chikudu cart in
1. quadrilateral /ˌkwɔdrəˈltərəl/ -- plane figure having four sides and four angles A square is a quadrilateral. 正方形是四边形的一种。 2. collateral /kəˈltərəl/ -- situated at the side; accompanying; parallel; additional; supple
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
Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low