"This is one of the unsolved mysteries of long-distance flights," Klaassen said.

“这是长距离飞行的不解之谜之一，”克拉森说。

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By Martine Klaassen Armed with two over-packed suitcases, we arrived at the airport just in time for my flight.

日记 我们提着满满的两个行李箱，及时到达机场赶上了我的航机。

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But it's these ample fat reserves that allow the birds to fly such long distances without stopping, said study leader Raymond Klaassen, a biologist at Sweden's Lund University.

可雷蒙德·克拉森，瑞典伦德大学的生物学家，这项研究的带头人却说，正是这些充足的脂肪储存，使沙锥鸟能够一口气完成如此长距离的飞行。

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