单词	polar nucleus
释义	polar nucleus noun : either of the two nuclei of a seed plant embryo sac that are destined to form endosperm Word History First Known Use 1882, in the meaning defined above
随便看	dau daub daube daubed Daubentonia daubentoniae daubentonias daubentoniidaes dauber dauberies daubers daubery daubes daubier daubiest Daubigny daubing daubingly daubings daubreeite daubreelite daubreite daubries daubry daubs

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