The plan to build a new MRT station is a tiring and a demanding project. The government needs to talk to hundreds of homeowners to buy their houses to clear out the space. When the project finally kicks off they will need to block the roads everywhere during construction, causing inconvenience to millions of pedestrians and automobiles. This is going to be a tough task.
 tiring demanding toughtiring 形容很勞累的感覺，也包括心的勞累，demanding 形容很苛求的意思，用在某個工作上就有費神的感覺。
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 chin of problems. Burning oil leads to increase in carbon dioxide, which leads to the greenhouse effect, which leads to melting of glaciers, which leads to rising sea levels.