set one's heart（up）on   (TTS發音)

1. want very much 很想要（或很想得到）

    He set his heart on that bike. 他很想要那輛自行車。

2. hope very much to succeed in doing sth. 很希望成功地做某事

    He set his heart on winning the race. 他很希望能贏得這場比賽。