接下来，研究人员将机器老鼠困在笼子里，让老鼠有机会按下杠杆来释放它们。
Next, the researchers trapped the robots in cages and gave the rats the opportunity to release them by pressing a lever.
实验过程是，他把鸽子困在笼子里，还不给鸽子喂食，饥饿的鸽子怒火中烧。
The experiment was, he would put — the pigeon was in a cage and he'd let the pigeon get pretty hungry -hungry pigeons are not happy pigeons.
当然，在一个繁忙的街区不太可能那么的安静，但比困在一个大笼子里一整天要好得多。
Sure, it might not be all that quiet if you're out in a busy street, but it's better than being cooped up all day.
当然，在一个繁忙的街区不太可能那么的安静，但比困在一个大笼子里一整天要好得多。
Sure, it might not be all that quiet if you're out in a busy street, but it's better than being cooped up all day.
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