proven
adj
verb
ˈpruːvən
adj
1
tested
and
shown
to
be
true
or
good,
or
shown
to
exist
被证实的，经验证的
a
player
of
proven
ability
确有才华的运动员
a
telephone
system
with
a
proven
track
record
(=past
performance
showing
how
good
it
is)
of
reliability
业已证明可靠的电话系统
ˈpruːvən
verb
2
a
past
participle
of
PROVE
prove的过去分词