[usu. in sing.]a natural desire to satisfy a bodily need, especially for food 食欲;满足人体需要的欲望 he has a healthy appetite. 他胃口很好。 [mass noun]they suffered from loss of appetite. 他们受食欲不振之苦。 ■a strong desire or liking for something 对…的渴望(或爱好) her appetite for life. 她对生活的热爱。
语源
Middle English : from Old French apetit (modern appétit), from Latin appetitus 'desire for', from appetere 'seek after', from ad- 'to' + petere 'seek'