里程碑, 路标
a stone set up beside a road to mark the distance in miles from a particular place
示例:• We passed the ten-mile milestone on our journey.我们在旅途中经过了十英里里程碑。• The old Roman milestones are still visible in some areas.古罗马的里程碑在某些地区仍然可见。同义词:markerwaymarkpost