I'll have extra helpings on my dessert."

或"我要再吃一份餐后甜点"
And your superego is saying, "No, no, no."

超我则在打压这些欲望 "不行"
And this stuff is repressed.

所以欲望受到了抑制
It doesn't even make it to consciousness.

这个过程并不会出现在意识层面之中
The problem is

问题在于
Freud had a very sort of hydraulic theory

弗洛伊德用所谓的液压理论
of what goes on,

解释了发生的事情
and some of this stuff slips out

有些受到压抑的欲望
and it shows up in dreams and it shows up in slips of the tongue.

会通过梦境和口误而表现出来
And in exceptional cases,

在某些特殊情况下
it shows up

受压抑的欲望
in certain clinical symptoms.

会通过特定的临床症状而表现出来