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一只船以6mi/hour向北走另一只船以8mi/hour向东走,两小时后两船相离的速度是多少

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一只船以6mi/ hour 向北走另一只船以8 mi/ hour向东走,两小时后两船相离的速度是多少
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答案和解析
One ship goes towards north at the speed of 6m/h,while the other one goes towards east at the speed of 8m/h.what's the distance between them after two-hour sailing?
如果你问的是距离不是速度的话,大致是这么译的了.
the distance is 20m.