Postal service e cinzel: o que têm em comum

1. Passo 1. Postal service — utiliza — Steam locomotive. Mail trains.
2. Passo 2. Steam locomotive — utiliza — Railway track. It runs on rails.
3. Passo 3. Railway track — é utilizado em — Metro. It runs on rails.
4. Passo 4. Metro — utiliza — Tunnel. Tunnels.
5. Passo 5. Tunnel — utiliza — Cinzel. Hezekiah’s Tunnel was cut by hand with chisels.

Abrir Evothings