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* 1. 转换视角：将"追车"问题转为"到达时间"比较（后车时间≤前车 → 合并）；
，更多细节参见同城约会
This story was originally featured on Fortune.com
"It's been investigated for many years," says Read, acknowledging that elastomers have yet to revolutionise actuator tech. "Often with these technologies, you have to keep pushing."