I'm like a head trip to listen to, 'cause I'm only givin' you things you joke about with your friends inside your living room.
煤炭使美国在世界范围内保持竞争力。
The climate crisis is the greatest challenge agriculture has ever faced—and our greatest opportunity.
货币政策中的时间不一致性问题出现在政策制定者一旦经济主体根据宣布的政策采取行动后,就有动机偏离该政策。