释义 |
A-one ⇨ A-one; A-1 adjective excellent, first-class. Originally of ships, then of persons and things US, 1846
A1Of the very highest caliber, standard, or quality. That was a positively A1 performance last night. A-oneAlso, A-1; A-number-one. First-class, of the best quality, as in This is an A-one steak. The term comes from Lloyd's, the British insurance company, which in its 1775 shipping register designated the condition of a ship's hull by a letter grade (A, B, etc.) and of its cables, anchor, and other equipment by a number grade (1, 2, etc.). By the early 1800s A-1, the best possible grade, was being transferred to anything of superior quality. |