ultraviolet
adj
ˌʌltrəˈvaɪəlɪət◄
adj
1
ultraviolet
light
cannot
be
seen
by
people,
but
is
responsible
for
making
your
skin
darker
when
you
are
in
the
sun
紫外（线）的
ultraviolet
radiation/rays
ultraviolet
radiation
from
the
sun
太阳发出的紫外线辐射