allergy
noun
ˈælədʒi
noun
1
a
medical
condition
in
which
you
become
ill
or
in
which
your
skin
becomes
red
and
painful
because
you
have
eaten
or
touched
a
particular
substance
过敏性反应，过敏症
[+
to
]
I
have
an
allergy
to
cats.
我对猫过敏。
a
food
allergy
食物过敏