乔治华盛顿大学的研究科学家卡罗琳·瓦格纳指出，国际合作提供了额外的灵活性。
Caroline Wagner, a research scientist at George Washington University, notes that international collaborations offer additional flexibility.
乔治华盛顿大学的古人类学家伯纳德•伍德提出了相似的观点。
A similar view was taken by Bernard Wood, a paleoanthropologist at George Washington University.
那么，你如果想飞，你的体重该保持在什么水平上呢？ 华盛顿大学的科学家们说，这取决于你在换羽期间更换飞羽的速度。
So what if you want to fly? University of Washington scientists say it depends on how fast you can replace your flight feathers when you molt.
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