主利率 meaning in Chinese

ruling rate of interest

“ and after the prime rate declined by half a point , and the dow rose by thirty - two , guess what happened to goose and fox
“要是主利率降了半个点，道?琼斯涨了三十二点，你们猜大白鹅和狐狸能赚多少？ ”
“ and after the prime rate declined by half a point , and the dow rose by thirty - two , guess what happened to goose and fox
“要是主利率降了半个点，道?琼斯涨了三十二点，你们猜，会给大白鹅和狐狸带来什么变化？ ”