A message can easily be whistled over a couple of miles, while to travel that same distance on foot might take an hour.

一条信息容易就能传送到几英里外，而步行同样的距离可能需要一个小时。

youdao

Q. a doctor once told me that the body heals faster during sleep. If I slept a couple of extra hours each day, would my broken foot heal faster?

医生会建议你多睡觉来加快身体组织恢复。如果我睡饱了，我的坏脚会好的快马？

youdao

The elderly couple fled their home on foot, but they could not keep up with their neighbours and fell behind as the tsunami rushed in.

老夫妇步行逃离他们的家园但他们跟不上邻居，在海啸冲进来时落在了后面。

youdao

a girl balances on one leg, holding her foot and glowering at a blushing boy, while another young couple dance in the background.

VOA: standard.2010.08.09

Pleasingly tight in scale (Darabont brought over the production team from TV's "The Shield"), "The Mist" shoots itself in the foot with a couple of clumsy episodes.

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Pedestrians won't miss a beat while they are on foot, in a couple of taps destinations such as restaurants, bars, hotels, and more are at their fingertips.

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Also, someone had dropped an amplifier on his foot at a gig a couple of nights before.

NEWYORKER: We Are Alive