一步两步走来，给你挠挠痒痒。
因此挠痒的行为是行使强权压制别人。
The act of tickling is therefore an exercise of great power over an other person.
你不会像这样挠痒吧。
去看猴子挠痒痒。
好啦，可能其实这更像是在挠痒痒，但还是很酷对不对。
科学家通过“挠痒痒”这种方式来使不同种类的大猩猩和一些人类婴儿发出笑声。
That's how researchers made a variety of apes and some human babies laugh.
科学家通过“挠痒痒”这种方式来使不同种类的大猩猩和一些人类婴儿发出笑声。
That's how researchers made a variety of apes and some human babies laugh.
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