Ponte e turbine: o que têm em comum

  1. Passo 1. Ponte — inclui — Suspension bridge. A bridge.
  2. Passo 2. Suspension bridge — é feito de — Wrought iron. The chains of early suspension bridges were made of wrought iron.
  3. Passo 3. Wrought iron — é material para — Ocean liner. The hull is iron, later steel.
  4. Passo 4. Ocean liner — tem como parte — Turbine. Large liners run on steam turbines.

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