6N-SING [oft n NOUN](对…的)热衷,迷恋 You can say that someone has been bitten by a particular bug when they suddenly become very enthusiastic about something. (对…的)热衷,迷恋 [informal]
I've definitely been bitten by the gardening bug.
我被园艺彻底迷住了。
Roundhay Park in Leeds was the place I first got the fishing bug.