When "until last Easter" serves as an adverb it is an exocentric construction.
当“直到上一个复活节”用作副词时，它是一种外向结构。
Exocentric construction: Opposite to the first type, is defined negatively as a construction whose distribution is not functionally equivalent to any of its constituents.
离心结构：跟第一种结构相反，它是从反面定义的。它的分布跟其中任何成分的分布都不同。
Exocentric construction: Opposite to the first type, is defined negatively as a construction whose distribution is not functionally equivalent to any of its constituents.
离心结构：跟第一种结构相反，它是从反面定义的。它的分布跟其中任何成分的分布都不同。
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