When they fall over, they slide a long way down the hill!

当他们落下时，就会沿着山坡滑行很长的一段路。

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Engineers are developing shoes with a tracking chip in them that notifies relatives when they fall over. Friends or family can then find them easily and come to their aid.

工程师正在开发一种嵌入追踪芯片的鞋，一旦穿鞋的人跌倒，芯片就会通知亲属，朋友或家人很容易就能找过来帮忙。

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When the babies see the keepers, they run over with excitement and some of them even walk into their friends and fall over!

当宝宝们看到饲养员时，它们兴奋地跑过来，其中一些甚至撞到它们的朋友们，摔倒了！

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All I did when they visited was cry in sympathy for their worry over me, or fall asleep, but after they left I missed them.

NEWYORKER: The Reptile Garden

Hence the interest in a second Vienna initiative, whereby Greece's existing creditors would band together and agree to roll over their exposures to Greek debt when they fall due.

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It's scheduled to hear several more this fall, including one case over a federal law that binds consumers when they agree to settle disputes in arbitration, and another that seeks to prevent lawsuits over drugs approved by the Food and Drug Administration.

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