ultra-fast

English

From ultra- +‎ fast

ultra-fast (not comparable)

Alternative form of ultrafast
- 1960 February, “Talking of Trains”, in Trains Illustrated, page 67:
  Less important lines of plain double track carrying a mixture of passenger and freight traffic cannot be given ultra-fast expresses, and where alternative routes exist, as for example between London and the West Riding, the specially high-speed trains must be restricted to one of them only.

单词	ultra-fast
释义	ultra-fast English Etymology From ultra- +‎ fast Adjective ultra-fast (not comparable) Alternative form of ultrafast 1960 February, “Talking of Trains”, in Trains Illustrated, page 67: Less important lines of plain double track carrying a mixture of passenger and freight traffic cannot be given ultra-fast expresses, and where alternative routes exist, as for example between London and the West Riding, the specially high-speed trains must be restricted to one of them only. References “ultra-fast” in Lexico, Dictionary.com; Oxford University Press.
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