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	thimble and pea thimble chamber thimble lily thimble-eye thimbleberries thimbleberry thimbled thimbleflower thimbleful thimblefuls thimblerig thimblerigged thimblerigger thimbleriggers thimblerigging thimblerigs thimbles thimbleweed thimbleweeds thimbling thimerosal thimerosals Thimphu thin thin film

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