引叙

引叙	yǐn xù	to introduce a text by citing documents or source material at the beginning
引	yǐn	to draw (e.g. a bow) / to pull / to stretch sth / to extend / to lengthen / to involve or implicate in / to attract / to lead / to guide / to leave / to provide evidence or justification for / old unit of distance equal to 10 丈, one-thirtieth of a km or 33.33 meters
叙	xù	variant of 叙
叙	Xù	abbr. for Syria 叙利亚
叙	xù	to narrate / to chat