Objects, like bits of old space rockets or satellites, move around the planet at very high speeds, so fast that even a very small piece can break important satellites or become dangerous to astronauts.
一些物体，比如一些旧的太空火箭或卫星碎片，在地球上以非常高的速度运动，速度如此之快，以至于一个非常小的碎片都能破坏重要的卫星或对宇航员造成危险。
Such objects could be either beneficial or dangerous, depending on whether they decided to serve their creators or turn against them, either of their own volition or through the black arts of others.
这些物品可以有益于人类，也可能是危险的，取决于它们决定为自己的创造者服务还是对抗他们——通过自己的意志力或借助其他东西的黑魔力。
Children mustn't play with dangerous objects like sharp knives or scissors.
小孩子不可以玩危险的物品，例如锐利的刀子或剪刀。
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