hum
verb
n
hʌm
verb
1
to
sing
a
tune
by
making
a
continuous
sound
with
your
lips
closed
哼（曲子）
I,T
hum
to
yourself
Tony
was
humming
to
himself
as
he
drove
along.
托尼边开车边哼着曲子。
He
began
to
hum
a
tune.
他开始哼唱一支曲子。
2
to
make
a
low
continuous
sound
发出嗡嗡响
I
Machines
hummed
on
the
factory
floor.
机器在工厂里嗡嗡作响。
3
if
a
place
hums,
it
is
full
of
activity
–
use
this
to
show
approval
〔场所〕忙碌，活跃〔含褒义〕;
I
By
nine
o’clock,
the
restaurant
was
humming.
到九点钟时，餐馆里已经熙熙攘攘，人来人往。
[+
with
]
The
streets
were
humming
with
life.
大街上很热闹。
4
hum and haw
to
take
a
long
time
deciding
what
to
say
or
do
[英] 支吾，吞吞吐吐; 迟疑;
BrE AmE
n
5
a
low
continuous
sound
嗡嗡声; 低沉而持续的嘈杂声
[+
of
]
the
distant
hum
of
traffic
远处嘈杂的车流声
6
hum of excitement/approval etc
the
sound
of
people
talking
because
they
are
excited
etc
兴奋/赞同等的嗡嗡声