impulse
noun
ˈɪmpʌls
noun
1
a
sudden
strong
desire
to
do
something
without
thinking
about
whether
it
is
a
sensible
thing
to
do
冲动; 突然的欲望;
C,U
impulse
to
do
sth
a
sudden
impulse
to
laugh
突然想笑的冲动
Marge’s
first
impulse
was
to
run.
玛吉的第一个念头就是跑。
Gerry
couldn’t
resist
the
impulse
to
kiss
her.
格里抑制不住想亲吻她的冲动。
on
impulse
On
impulse,
I
picked
up
the
phone
and
rang
her.
一时心血来潮，我拿起电话给她打了过去。
Most
beginners
buy
plants
on
impulse
and
then
hope
for
the
best.
很多初学者在冲动之下买了植物，然后就抱着最大的希望。
impulse
buying/shopping
2
a
short
electrical
signal
that
travels
in
one
direction
along
a
nerve
or
wire
[术语] 神经冲动;（电）脉冲
C | technical
The
eye
converts
light
signals
to
nerve
impulses.
眼睛把光信号转变成神经冲动。
3
a
reason
or
aim
that
causes
a
particular
kind
of
activity
or
behaviour
推动力
C
It
is
the
passions
which
provide
the
main
impulse
of
music.
激情是音乐创作的主要动力。