动物园使人们无需前往野外地区（就能看到动物），从而为野生动物保护做出了贡献。
Zoos save people trips to wilderness areas and thus contribute to wildlife conservation.
曾两次前往太空对 哈勃望远镜进行维修的宇航员乔恩•格伦斯菲尔德说：“正是由于图像超级清晰，才使我们有种亲临太空的感觉。”
"It's that extreme clarity that gives us the feeling we've traveled out into space to see these objects," said Jon Grunsfeld, an astronaut who did repair work on Hubble during two shuttle missions.
这种神奇的蛛丝还可以用来制造线绳，使蜘蛛在前往新区域时能紧紧抓住。
This amazing silk is also used to create lines that spiders hang onto as they travel to new areas.
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