求翻译：而逆构法则与缩略法有所不同，他是在原有单词的基础上通过改变其词性，如n→v,来适应生活的需要，如先有行骗者，后来有人开始出现行骗这种行为，既而，swindler →to swindle.在生活中，特别是医学用语中，缩略法经常通过委婉语的功能来体现。如，如果一个病人得了癌症，医生一般不会直接告诉病人得了癌症，而是通过Ca(cancer)的委婉语功能来实现的。是什么意思？

Inverse constitutive law of the abbreviated method is different, he is on the basis of the original word by changing its part of speech, such as n → v to adapt to the needs of life, such as the first fraudster, and later began to defraud this kinds of behavior, subsequently, the swindler → to swindl

and counter-build rule and the law slightly different, he is in the original word by changing the basis of the word, such as N → V to adapt to the life, such as the need to have a deception, and later it was started by the existing fraud this kind of behavior, both the swindler → to swindle, in life

But the counter construction principle with shrinks method differs from slightly, he is through changes its lexical category in the original word foundation, if n→v, meets the life need, if has the wheedler first, afterwards some people started to appear de

Inverse constitutive law and Shortening differently, he is on the basis of the original Word by changing its part of speech tagging, such as n → v, to meet the needs of life, such as obtaining property by deception, subsequently began acts of deception that, afterwards, swindler → to swindle. in lif