用“ ”和“ ”分别表示氮原子和氧原子,下图是氮气与氧气在放电条件下发生反应的微观模拟图。请回答下列问题:
人们总是自东方迎来日出,由西方送走落日,这是因为( )
Many young people, most of ____were well-educated, headed for remote regions to chase their dream.