the characters that were once kept in bottom half of a compositor's type case
同义词：small letter, lower-case letter, minuscule
形容词 lowercase:
relating to small (not capitalized) letters that were kept in the lower half of a compositor's type case
lowercase详细解释
lowercase 或 low.er-case
adj.Abbr. lc（形容词）缩写 lc Of, relating to, or being lowercase letters. 小写字型的：属于，关于，或是小写字母的 v.tr.（及物动词） lower.cased,lower.cas.ing,lower.cas.es To put (type or text) in lowercase letters. 用小写字母书写，打字，或排印的
