second-level domain

短语

词形变化

second-level domains 复数 second-level domains

别名

SLD

释义与例句

n.
  1. 1.

    A domain that is immediately subordinate to a top-level domain (whose name appears after it, with a period separating the two).

    计算机 工程 数学

    Wiktionary.org is a second-level domain, part of the org top-level domain.