太阳系也有两类类似的物体，比行星还小——即小行星和彗星。
The solar system also has two analogous classes of objects, smaller than planets—namely, asteroids and comets.
她说：“我们会给他们看一些相似的物体，不止一个名字。”
"We will show them familiar objects with more than one name, for example, a spoon in the shape of an airplane," she said.
而且这种相似的物体在地球上的其他地区已经被发现了，特别是在哈萨克斯坦和新西兰。
It turned out that similar objects have already been found in other areas of the Earth, particularly in Kazakhstan and New Zealand.
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