你的问题前面奉老师已有解答了:
After missed promises, Musk this year diverted his focus to developing the vehicles after scrapping plans to build a smaller, cheaper car widely seen as essential to countering slowing EV demand.
这句话的after missed promises为什么after后面直接加过去分词?还是after后面省略了主语的用法?这里的after是个连词省略了musk这个主语?