The goal of the trip was to cross Antarctica on foot.

VOA: special.2010.02.24

Now I didn't use--no hands-- that was just the notes that are naturally on the twelve and a half-foot length of vibrating air.

我没有用手控制,都是十二个半英尺高的震动空气柱,自然产生的音符

耶鲁公开课 - 聆听音乐课程节选

That puts great force on the back of the foot.

VOA: special.2010.02.03

Then he would fall down on the floor again like a ball of dirt and start rubbing the side of his head with his back foot as if he had no idea he had been doing any more than any frog might do.

VOA: special.2009.08.29

The rights group says the government's foot-dragging on calls for justice for the victims of post-election violence threatens to undermine Kenya's stability and impede future economic development.

VOA: standard.2009.07.31

and Mexican officials. Every day, thousands of people on foot and in vehicles go back and forth across the border here, and millions of dollars worth of products cross the line in trucks and railroad cars.

VOA: standard.2009.04.30

An honorary guard looked on as officials placed wreaths at the foot of the monument to the defenders of Westerplatte at 4:45 am local time, the exact time that the German battleship Schleswig-Holstein began shelling this tiny Polish military outpost.

VOA: standard.2009.09.01