求翻譯：Many coalbed-methane prospects are under evaluation in the U.S. and throughout the world. In the U.S., higher gas prices have accelerated exploration of prospects in areas that previously were thought to be uneconomical for development. These areas include relatively unexplored new basins as well as step-out areas in d是什么意思？

待解決 懸賞分：1 - 離問(wèn)題結(jié)束還有