中文翻译与英英解释

【语言学】词性转换。

functional:    adj. 1.官能的，机能的。 2.在起作用的；职务上的 ...

shift:    vt. 1.变动；改变；搬移；移动；转移；变换；替换；更 ...

In linguistics, functional shift occurs when an existing word takes on a new syntactic function. For example, the word like, formerly only used as a preposition in comparisons (as in "eats like a pig"), is now also used in the same way as the subordinating conjunction as in many dialects of English (as in "sounds like he means it").