The canoes allow them to travel over a vast area that today would take a few hours to fly over.

这些独木舟使他们能够跨越一个广阔的地区，而今天飞过去需要几个小时。

youdao

Without its six fly-bys—which used the gravitational fields of the planets involved to counter that effect—Messenger could not have slowed sufficiently to allow it to drop into its intended orbit.

没有这六次“飞经”（利用各行星重力场的作用），就没办法使信使号降到能滑进水星轨道的速度。

youdao

Another way is to have a button that adds new keyword fields on the fly to allow users to add as many keywords as they want.

另一种办法是让按钮随时增加新的关键字，允许用户根据需要添加任意多的关键字。

youdao

"We do not allow a pilot who has not flown in Mangalore, we do not allow him to fly to Mangalore ...

VOA: standard.2010.05.23

As the skies become more crowded, technology could be used to enable the size of such "safety spheres" to be reduced - or rather, to allow planes to fly closer to each other.

BBC: Sowing the seeds of tomorrow's aircraft

The Saudis approved Pentagon use of the Combined Air Operations Center (CAOC), a multibillion-dollar U.S.-built facility at the Prince Sultan base, to direct the air war against the Taliban but did not offer to allow American bombers to fly combat missions from Saudi bases.

CNN: Do We Still Need the Saudis?

Once the decision was made to allow him to fly, it is simply confounding that he was able to bring high explosives on board with relative ease.

CNN: Blame game won't stop terrorism