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Why Are Some People Double-Jointed? Can you bend your thumb backwards until it touches your wrist? If you join your hands behind your back, can you lift them over your head without letting go? If you can, you might be what some people call double-joi
英语听力文摘 English Digest
Can you bend your thumb backwards until it touches your wrist? If you join your hands behind your back, can you lift them over your head without letting go? 你是否能将大拇指向后弯曲直至其触碰到手腕部位？你将双手在背后紧握
2018年NPR美国国家公共电台2月
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
突破英文词汇
Why Is Gravity Good For Us? When astronauts return from long missions in space, their exit from the spacecraft is usually hidden from public view. This is because after several months in weightless conditions, things we usually take for granted, such
英语听力文摘 English Digest
It's as simple as something that nobody knows that her eyes are as big as her bubbly toes on the feet of a queen of the hearts of the cards and her feet are all covered with tar balls and scars It's as common as something that nobody knows that her b
美国乡村音乐
你晚上经常蜷着身体用像胎儿的姿势睡觉吗？还是你只有平躺着才能睡着呢？对于大多数人来说他们睡觉的姿势业已形成。但研究发现我们睡觉的姿势能严重影响我们的健康和幸福。左侧侧卧
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