For example, if you want to take a step backwards, you can pick your front foot up first.

比如，如果你要往后退一步，你会首先抬起前脚。

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You will find you need to twist your torso back away from your front foot to keep your torso squared to the front wall.

你会发现你需要从你的前脚从回扭转你的躯干，正方形保持你的躯干呈正方形面向前面的墙。

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In most cases, the back foot should be pointed away from the camera about 90 degrees, and the front foot should be pointed at the camera.

在大多数情况下，后脚应该和镜头成90度，前脚正对镜头。

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But the study found that barefoot runners generally land on the front or middle of their foot.

VOA: special.2010.02.03

That is, until Billy Bowden asked the third umpire for a front foot ruling.

BBC: Justin Langer column

Brokers typically value these properties by price per front foot, or the amount of beach frontage.

FORBES: Attention Larry Ellison: A $23 Million House On Billionaires' Beach Coming To Market

Chelsea saw out the half firmly on the front foot and had three further chances to take the lead.

BBC: Chelsea 2-0 Blackburn Rovers