I have my heart set on this car,I am willing to borrow money to buy it.
我决心要买这辆车，我愿意借钱来买。
have one's heart set on...表示一心一意要去做某事或得到某东西。
I have my heart set on studying abroad.
我一心一意要到国外读书。
What do you have your heart set on?
有什么事你们是一心一意想去做的，或有什么东西你们是决心要拥有的。
