1. main line - o. trunk line 2. wooden rails - m. timber rails 3. to design - a. to project4. to switch to - i. to shift to5. carriage - h. coach6. engine - d. locomotive7. to manufacture - p. to produce 8. to adopt - e. to accept9. speed - velocity 10. glory - t. fame
11. to select - s. to choose 12. to originate - f. to create 13. misfortune - j. bad luck 14. innovations - r. inventions15. to use - g. to employ16. to build - k. to construct 17. timetable - l. schedule 18. passenger car - b. car 19. power - n. capacity 20. service - q. maintenance