资料来源 : pyDict

N字,半方在,在…中

资料来源 : Webster's Revised Unabridged Dictionary (1913)

En \En\, n. (Print.)
   Half an em, that is, half of the unit of space in measuring
   printed matter. See {Em}.

资料来源 : WordNet®

en
     n : half the width of an em [syn: {nut}]