break the habit of a lifetime
US /breɪk ðə ˈhæbɪt əv ə ˈlaɪftaɪm/
UK /breɪk ðə ˈhæbɪt əv ə ˈlaɪftaɪm/

1.
改掉一輩子的習慣, 打破長期習慣
to stop doing something that you have been doing regularly for a very long time
:
•
It's hard to break the habit of a lifetime, but I'm trying to eat healthier.
很難改掉一輩子的習慣,但我正在努力吃得更健康。
•
After years of smoking, he finally decided to break the habit of a lifetime.
吸菸多年後,他終於決定改掉一輩子的習慣。