(每日一词) allergic

Allergic /əˈlɜːrdʒɪk/ adj. 过敏的

meaning: If you are allergic to something, you become ill or get a rash when you eat it, smell it, or touch it. 

前缀: all-表示其他, 建议直接联想为all 所有

词根: erg- 表示活动, 工作(energy)

后缀: -ic 形容词后缀

e.g. I'm allergic to peanuts, so I can't eat any food that contains them. 我对花生过敏，所以我不能吃任何含有花生的食物。