frequency
noun
ˈfriːkwənsi
noun
1
the
number
of
times
that
something
happens
within
a
particular
period
of
time
or
within
a
particular
group
of
people
发生的频率，发生率
U
[+
of
]
the
frequency
of
serious
road
accidents
重大道路交通事故的发生率
the
high/low
frequency
(of
sth)
the
higher
frequency
of
diabetes
in
older
people
老年人中较高的糖尿病发生率
Side
effects
from
prescribed
drugs
are
being
reported
with
increasing
frequency
(=more
and
more
often)
.
处方药的副作用越来越频繁地被报道出来。
The
relative
frequency
of
fraternal
twins
has
halved
since
1950.
自 1950 年以来，双卵性双胞胎的相对发生率下降了一半。
2
the
fact
that
something
happens
a
lot
频繁;
U
Businesses
come
and
go
with
alarming
frequency
.
商家更迭过于频繁。
3
the
number
of
radio
waves,
sound
waves
etc
that
pass
any
point
per
second
[术语] 〔无线电波、声波等每秒钟的〕频率，周率
C,U | technical
This
station
broadcasts
on
three
different
frequencies.
这家电台以三种不同的频率广播。
high/low
frequency
Dolphins
produce
a
high
frequency
sound.
海豚发出的声音频率很高。
the
frequency
range
of
the
human
ear
人耳的频率范围