d.

• diopter 屈光度，折光度

英英释义

名词 d:

1. a fat-soluble vitamin that prevents rickets

2. the cardinal number that is the product of one hundred and five

3. the 4th letter of the Roman alphabet

形容词 d:

1. denoting a quantity consisting of 500 items or units

词汇搭配

• d. ex. =Doctor of...
• a pretty how-d'ye-do 糟糕的事情