要理解这次重构，必须先搞清楚一个问题，相较于中国市场，为什么欧美游艇产业更为发达和成熟？
Waymo's testing phase deploys Waymo vehicles with human drivers to cities where the Google-owned company is looking to roll out its ride-hailing service. During this phase, Waymo effectively gleans knowledge from the human drivers to best understand the lay of the land.
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走进廊坊经济技术开发区一家制药企业，生产车间内，干净整洁的生产线有序运转；污水处理站里，经过升级的治污设备平稳运行。
太行深处，河北阜平骆驼湾村，平整道路随山势蜿蜒，把小山村接入交通网。