painless
adj
ˈpeɪnləs
adj
1
causing
no
pain
无痛的
a
painless
death
无痛死亡
2
not
difficult
or
unpleasant
to
do
不费力的
The
train
is
a
quick
and
painless
way
to
travel.
火车是一种快捷方便的旅行方式。
The
interview
was
relatively
painless
.
面试相对容易。