“任”字有多个义项,其中“當”这个义项在《左传》中多次出现,“當”即“担当、承受”义,由“负担”义引申而出。“怀孕”是“任”的另一个义项,其产生有假借和引申两种说法,笔者更倾向于引申一说,因怀孕之后便有负担,所以由“怀孕”引申出“负担”之义。由此看来,“怀孕”与“當”是引申与被引申的关系。 “Ren ” word has multiple meanings, of which “When ” this meaning in the “Zuo Zhuan” appeared many times, “when ” that is, bear Yi extended out. “Pregnancy” is another meaning of “Ren ”, its production has borrowed and extended two kinds of argument, the author is more inclined to extend one to say, because after pregnancy there will be a burden, so by “pregnant ” extended “Burden ” meaning. Seen in this light, “pregnant” and “when” is the extended and extended relationship.