d
名词 d:
a fat-soluble vitamin that prevents rickets
同义词:vitamin D, calciferol, viosterol, ergocalciferol, cholecarciferol
the cardinal number that is the product of one hundred and five
同义词:five hundred, 500
the 4th letter of the Roman alphabet
同义词:letter d
形容词 d:
denoting a quantity consisting of 500 items or units
同义词:five hundred, 500