19 年前
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年轻艺人化身“自然研究员”带着4-6岁的萌娃们一起出行，大小朋友分队合作，通过一系列游戏和体验活动收集自然元素，唤醒感知力，加深对自然的理解和彼此的友情。。Massive machines require engineering extremes. The massive man-made satellite, commonly known as the International Space Station, hurtling around the Earth at 27,600 km an hour, has been a temporary home for humans for the last 20 years. The biggest land vehicle on earth, a bucket excavator titled Bagger 293, that can move 240,000 cubic meters of dirt each day. Innovation has a...。
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