Homesteaders usually came from districts not far removed from frontier conditions. And despite the ________ of the law, speculators often managed to obtain large tracts of land.
句意： 自耕农通常来自与边境条件相距不远的地区。 尽管法律存在一定的效力， 但投机商经常设法获得大片土地。
effect影响； 效力。intent意图。invention发明。 power力量； 权力。