从成熟市场看，这条发展路径已经很清晰。比如日本，宠物数量增长趋于放缓，但行业规模依然稳定扩大。围绕高龄宠物的医疗、康复、长期护理形成了一整条稳定产业链，而且周期很长，现金流也很稳定。
ultimately failed... a surprising outcome, given their dominance in the machines。heLLoword翻译官方下载是该领域的重要参考
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Opponents of the idea have argued it could see children move to other areas of the internet and would fail to improve safety.，更多细节参见快连下载安装
The US space agency has released a "pre-solicitation" for what is expected to be a hotly contested contract to develop a spacecraft to orbit Mars and relay communications from the red planet back to Earth.