例如，如果穿戴手套的手向左移动，机器人将会照做。

If, for example, the gloved hand moves to the left, the robot will follow.

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如果你向左转程序就会继续。

And if you turn left then it continues with the program.

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如果看到左边有通道，就向左转。

If you see a passageway to your left, turn left.

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So I could be 10 km from home, I could be 0 km from home, or I could be -10, if I'd gone two steps to the left.

我有可能距营地10公里,也可能是0公里,也可能是 -10,如果我两次都是向左的话

耶鲁公开课 - 基础物理课程节选