If you are a foreigner on a sightseeing trip in Taiwan, you are qualified to purchase a one-day pass for unlimited train rides for the day.
a one-day pass for unlimited rides for the day可把交通工具放在此句子裡，例如:火車一日遊票券 = a one-day pass for unlimited train rides for the day
這是一個連環問題: 燃燒石油導致二氧化碳增加，二氧化碳增加導致溫室效應，溫室效應導致冰層融化、海平面上升。 (請填空)
This is a chain of problems. Burning oil leads to increase in carbon dioxide, which leads to the greenhouse effet, which leads to melting of glaciers, which leads to rising sea levels.