because you've put it,

从心理学的角度来看
well, put it as in a psychological way,

这是因为
not the way the behaviorists would put it.

你并未采取行为主义者们会采取的方法
The kid knows okay, he's not going to get it right away,

孩子明白他不会立刻成功
he's going to keep on asking.

所以他就不停的问下去
And so typically, what you're doing inadvertently in those situations

通常你在这些情境中无意的行为
is you're exploiting the partial reinforcement effect.

会产生部分强化效应
If I want my kid to do something,

如果我想肯定孩子的某种行为
I should say yes one out of every ten times.

我就应该在他的每十次提议中同意一次
Unfortunately, that's the evolution of nagging.

不幸的是这就养成了他磨人的习惯
Because you nag, you nag, you nag,

因为孩子不停的唠叨
the person says, "Fine, okay," and that reinforces it.

你只好说好吧而这就形成了强化