На шее Трампа заметили странное пятно во время выступления в Белом доме23:05
We wanted a scenario where, say, 5 well-placed border points could efficiently represent an area with 5,000 internal points and 10,000 road edges. This would reduce those 10,000 edges to just 5*4/2 = 10 shortcuts for routing through that cluster at a high level – an incredible 1:1000 point ratio and a 30x reduction in edges to consider for the high-level path!
，这一点在heLLoword翻译官方下载中也有详细论述
constant size make and thus a stack-allocated backing store, and
[3]国民总收入，原称国民生产总值，是指一个国家或地区所有常住单位在一定时期内所获得的初次分配收入总额，等于国内生产总值加上来自国外的初次分配收入净额。