关于by介词短语的成分问题
问题描述：
关于by介词短语的成分问题
The Fed action followed the third cut in interest rates in six weeks by the People's Bank of China,which said the benchmark rate for one-year loans by commercial banks would fall by 27 basis points to 6.66 per cent.
在美联储减息之前,中国央行(BPOC)6周来第三次下调利率.中国央行宣布,将商业银行一年期贷款基准利率下调27个基点,至6.66%.
请问中间的by 27 basis points to 6.66 per cent.在句中是做什么成分?fall在此是否应该为不及物动词?
答
by 27 basis points to 6.66 per cent是介词引导的状语,表示动词fall的状态
fall在此处是不及物动词,表示自身的降低