音标：['fri:kwәnsi] ；柯林斯词典等级：2 级；

n. 频率, 频数
[计] 频率

n. the number of occurrences within a given time period
n. the ratio of the number of observations in a statistical category to the total number of observations
n. the number of observations in a given statistical category

词型变化：名词复数形式 : frequencies
考试类型：[四级/六级/考研/IELTS/GRE]

词性分布：

名词100%

frequency的用法和样例：

例句

用作名词(n.)

Accidents on that highway are happening with increasing frequency.那条高速公路上车祸发生得越来越频繁。
Accidents are happening with increasing frequency.事故正在愈加频繁地发生。
He wrote to both with tolerable frequency.他和他们通信，相当频繁。
He varied the transmission frequency.他变换了无线电传送的频率。
He tuned his radio to the police frequency.他把无线电调到警方的频率。
The pitch depends on the frequency.音调的高低是由频率决定的。
We can often correlate age with frequency of illness.年龄的大小往往与发病率有关。

常见句型

用作名词(n.)

Traffic accidents have decreased in frequency over recent years.近年来交通事故发生的频率已经下降。
The frequency of his visits annoyed her.她对于他的频繁来访感到厌烦。
Accidents are happening with increasing frequency.事故发生得越来越频繁。
If we can know their frequency we will monitor their talking.如果我们知道他们的频率,我们就能监听他们的谈话。
This radio station broadcasts on four different frequencies.这家无线电台用四种不同的频率播放节目。

词汇搭配

用作名词 (n.)

形容词+～

alarming frequency惊人的频率
high〔low〕 frequency高〔低〕频
increasing frequency越来越频繁

名词+～

radio frequency无线电频率
word frequency词的出现频率

介词+～

at〔with〕 frequency以…的频率
be on the frequency for a channel正接收某频道

经典引文

The diminished frequency of wars.
出自：Horace Smith
He wasn't calling her herzchen any more; of late she had noticed its frequency declining.
出自：C. McCullough

【近义词】

repetition

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