underlie
verb
ˌʌndəˈlaɪ
verb
1
to
be
the
cause
of
something,
or
be
the
basic
thing
from
which
something
develops
[正式] 构成…的基础; 作为…的原因
the
one
basic
principle
that
underlies
all
of
the
party’s
policies
贯穿该党各项政策的一个基本原则