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