直到6个小时后,飞机着陆时,他们才醒来。
The didn't wake up until six hours later when the plane was landing.
直到最近才发现的化石,显然是介于陆地哺乳动物和鲸类之间的过渡物种。
Missing until recently were fossils clearly intermediate, or transitional, between land mammals and cetaceans.
研究人员说,大麦是一个意外发现:这种作物生长在欧亚大陆西部,直到大约两千年前才成为中国中部地区的主食。
Barley was an unexpected find: the crop was domesticated in Western Eurasia and didn't become a staple food in central China until about 2,000 years ago, according to the researchers.
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