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词组 A-one
释义
A-one
⇨ A-one; A-1adjective excellent, first-class. Originally of ships, then of persons and things US, 1846

A1

Of the very highest caliber, standard, or quality. That was a positively A1 performance last night.

A-one

Also, 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.
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更新时间:2025/1/16 4:50:52