It will frustrate you and tapping your foot and twiddling your thumbs are recommended for this exercise, you will also find yourself staring into nothingness.

让你沮丧、揉脚、玩弄姆子都是这次练习所推荐的，你同样会发现你所凝视的东西是不存在的。

youdao

To create electricity for our modern AIDS - GPS, EPIRB, AIS, Satnav and so forth - we have four solar panels, a wind generator and a foot pump, which will also serve as exercise equipment.

为了给筏子上的现代小工具提供电力——卫星导航仪，应急无线电标识，船舶自动识别仪等——我们准备了四块太阳能电池板，一架风力发电机和一部兼作健身器的脚踏泵。

youdao

The best way to do this exercise, however, is not with your foot on a stool, but rather while lying on your back. This is how Pitchford taught me the hamstring stretch.

而最好的拉伸方法不是把脚放在凳子上，而是你仰卧，这就是Pitchford教我的拉伸后腿腱的方法。

youdao

Five years before his campaign for president, the then-280-pound, 5-foot-11 governor embarked on a weight-loss and exercise program.

WSJ: The Politics of Gov. Chris Christie's Weight