But,if a child is choking and cannot make noise or is turning blue, parents should know the Heimlich maneuver, or for babies under the age of one, give a few quick slaps on the back and then chest thrusts.

VOA: standard.2010.02.23

And when the chimpanzee slaps the lever, it gets some food.

当黑猩猩拍杠杆的时候，它就能拿到食物。

耶鲁公开课 - 心理学导论课程节选

And when the chimpanzee slaps the lever, it gets some food.

当黑猩猩拍杠杆的时候，它就能拿到食物。

耶鲁公开课 - 心理学导论课程节选