前辈的总结很受用。 另外,从一个较形象化的角度考虑,根据两个词的意思: following - after an event or as a result of it Following the president's speech, there will be a few minutes for questions. Thousands of refugees left the country following the outbreak of civil war.
after - when a particular event or time has happened, or when someone has done sth 个人感觉,following是在描述同一时间轴上的两个时间点,而after则侧重于一个时间点前后的两段过程。原句中,有一个动态的平行就是gradually declining与has steadily increased,是一个时间点前后的两个动态过程。 另外,since 就是一个时间点以后的一段过程,故一般since后面的主句都用完成时。 有点抽象,呵呵。 |