◎ km是什么意思 [医] 千米, 公里 n a metric unit of length equal to 1000 meters (or 0.621371 miles) km的用法和例句: 1. I could then space them out to one every 10.35 km. 然后每10.35千米分隔一下 2. Two hundred seventyish km... It's gonna be tight. 270多千米...