recommendation词根词缀写法：
前缀 re- 再;回 +中缀 com- 共同 + 词根-mend- 命令 + 后缀-ation 名词词尾
n.
正式建议;提议;推荐;介绍;推荐信;求职介绍信;
例句
RDFa was originally proposed by Mark Birbeck as a W3C note, but it has since become a formal W3C Recommendation and is gaining steam rapidly.
RDFa最初是作为W3C的注释由Mark Birbeck提出的，自诞生以来它已经成为了W3C的正式建议，得到快速发展。
变形
复数recommendations。
