If you're wondering why the US uses such an indirect system of voting, it’s because it was thought of in the late 1700s, when getting the whole country’s votes counted on the same day was nearly impossible.

如果您想知道为什么美国使用这种间接投票系统，那是因为它是在 1700 年代后期想到的，当时几乎不可能在同一天统计全国的选票。