seven-level

短语

词形变化

seven-levels 复数 seven-levels

别名

seven level 7-level

释义与例句

n.
  1. 1.

    A person who has qualified for "Craftsman" level of skill in the United States Air Force, with more training than "Journeyman" (five-level), but less than a "Superintendent" (nine-level)

    美国 政治 军事
  2. 2.

    Ellipsis of seven-level screwdriver.

词源

Shortened from a longer, bureaucratic US military designation (an Air Force Specialty Code), where '7' was code for "Craftsman".

来源：wiktionary