I bought the ad from the typesetter. 我是从一个排字工人那里买的这则广告。
For English, a compositor will ordinarily have two such cases, the upper case containing the capitals and the lower case containing the small letters. 就英语而言,排字工人通常有两个字盘,即包含大写字母的上方字盘和包含小写字母的下方字盘。