英语翻译After a spell in business and a few years at the Treasur

首先After a spell in business and a few years at the Treasury,是时间状语,然后 he was enticed to King's College 是主句,接着which 61 years earlier another economist-aesthete是对上面整个事情的修饰,是非限制性定语从句,再接着 John Maynard Keynes是another economist-aesthete的同位语,同时又是 had joined as a lecturer的主语,接着writing (with his mother's help) a letter of resignation from the civil service to his boss,是现在分词引导的独立主格结构从句对主语进行补充修饰,a Sir Arthur Godley也是boss的同位语