boldface什么意思解释？

boldface的音标：boldface的英式发音音标为：['bəʊldfeɪs]boldface的美式发音音标为：['boʊldfeɪs]...

We use boldface type for vectors.我们用黑体形式表示矢量.Design problems, which represent challenging applications of the text material, are identified by boldface problem numbers.对于本教材中较难的设计问题用黑体字题号来标志.You can specify whether the f...