It's a long sequence of instructions, it starts at the beginning, walks through, may jump around a little bit, but eventually comes down at the end. It's okay for the things you're doing for the early problem sets.

这是一长串指令，从开端开始，向前步行，偶尔来回跳一会儿,但是最终会走到结尾,这些足以解决最初级的问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

So, imagine the pig has a heavy collar and to reward the pig for walking forward you might remove the heavy collar.

所以，想象这头猪带着很重的项圈,作为对这头猪向前走的奖励,你可以把项圈拿掉。

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He began walking very fast.

他开始箭步向前走。

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You don't just want your pig to walk forward.

你不只想让这头猪向前走。

耶鲁公开课 - 心理学导论课程节选

And if you do that over the fullness of time, your reinforcement and punishment will give rise to a pig who walks forward.

如果你长时间的这么做，你的强化和惩罚,就会使这头猪形成向前走的行为。

耶鲁公开课 - 心理学导论课程节选

So, you reinforce the pig for walking forward and you punish the pig for walking backward.

那你就对这头猪向前走的行为给予强化,如果它向后退，你就惩罚它。

耶鲁公开课 - 心理学导论课程节选

Suppose you want the pig to walk forward.

假设你想让这头猪向前走。

耶鲁公开课 - 心理学导论课程节选