“他们不是总沿着直线飞行，这增加了旅程的长度，”研究小组成员提姆·吉尔福德博士说。

"They don't follow straight lines all the time and this may add miles to their journey," said research team member Dr Tim Guilford.

youdao

“他们不是总沿着直线飞行，这增加了旅程的长度，”研究小组成员提姆·吉尔福德博士说。

"They don't follow straight lines all the time and this may add miles to their journey," said research team member Dr Tim Guilford.

youdao