Travel, except during the Dark Ages, has continued to grow and, throughout recorded history, has played a vital role in the development of civilisations and their economies.
除了在黑暗时代之外，旅游业一直在持续发展壮大，并且贯穿有记录以来的历史，始终在各文明及其经济的发展中扮演着至关重要的角色。
Salamon also stressed that current NASA missions have already played a key role in measuring dark energy.
萨拉蒙还强调当前的美国国家航空航天局任务在暗能量测量方面发挥了重要作用。
Last year's Best Actor winner Jeff Bridges presented the award for Best Actress to Natalie Portman for her role in the dark thriller Black Swan.
去年最佳男主角的获得者杰夫·布里奇斯将最佳女主角奖项颁给了娜塔莉·波特曼，因其在黑暗惊悚片《黑天鹅》中出色的表现。
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