I knew he hated nuts, but I didn't know he was allergic.我知道他不喜欢坚果, 但我不知道他过敏。

I am allergic to cat hair.我对猫毛过敏。

Soya milk can cause allergic reactions in some children.豆浆对有些孩子会引起过敏。

It must have been an allergic reaction to something we ate.这肯定是我们吃的某种东西造成的过敏反应。

He was allergic to risk.他厌恶冒险。