A1

词形变化

A1s 复数 A1s

别名

A 1 A-1 A number 1

释义与例句

n.
  1. 1.

    Under the International Union of Railways (French: Union internationale des chemins de fer, UIC) classification system, a steam locomotive that has two coupled driving wheels followed by two trailing wheels, with no leading wheels; also called an 0-2-2.

adj.
  1. 1.

    In good health.

    非正式
  2. 2.

    In excellent or top condition.

    非正式
  3. 3.

    First-class. (Compare A 2 and A 3, which are inferior grades.)

词汇关系

名词

上位词 2

size format

词源

From various rating systems, as that of Lloyd's of London or the condition of insured ships. First attested in 1837.

来源：wiktionary