Economics does not determine history , but it does provide the backbeat .
经济无法左右历史的前进,但是经济能够提供回应和提示。
In the background , the roar of cascade creek provided a constant backbeat , a reminder that this part of alaska really is a rain forest , getting more than 100 inches of rain annually .
At any given moment there will be some very promising things happening but also , inevitably , a constant backbeat of less pleasant tasks that need to be done .