| 1. | Oh ， i just can ' t figure out the subway system at all
哦，我对地铁系统就是弄不明白。 |
| 2. | Wheel wear is a concern on most metro systems
对大部分地铁系统来说车轮磨损事关重大。 |
| 3. | Beijing planning to build world s biggest subway
国家媒体报道:北京将建设世界最大地铁系统 |
| 4. | We need a bigger metro system 2
我们需要一个更大的地铁系统。 |
| 5. | The complexity of subway systems around the world is mind - boggling
全世界地铁系统错综复杂，令人眼花缭乱。 |
| 6. | Yes , it is better . london has a bigger underground , or metro system
是的，好一些。伦敦的地铁系统要大一些。 |
| 7. | The newspaper says the bunker links to the city ' s subway system as well
报导还说，掩体还与城市的地铁系统相连。 |
| 8. | The newspaper says the bunker links to the city ' s subway system ， as well
报导还说，掩体还与城市的地铁系统相连。 |
| 9. | The newspaper says the bunker links to the city ' s subway system , as well
报导还说，掩体还与城市的地铁系统相连。 |
| 10. | Well , i think we need a bigger metro system and more buses here
哦，我想我们需要一个更发达的地铁系统和更多的公共汽车。 |
