frequency

英 ['friːkwənsi] 美 ['friːkwənsi]

• n. 频繁；频率

双解释义

n. (名词)

1. [U](某事发生可重复的)频率

   rate of occurrence or repetition of sth

2. [U]经常发生,频繁

   fact of being frequent or happening often

3. [C][U](声波或无线电波的)振动频率; 波段

   rate at which a sound wave or radio wave vibrates; band or group of similar frequencies

详尽释义

n. 名词

1. 频繁，屡次，不断，频仍，经常发生
2. 频率，频度，周率，次数，出现率，发生率，重复率
3. 【物】频率（无线电信号每秒电波数）
4. 拍频
5. 发病率
6. 振动频率
7. 黑洞频率

英英释义

Noun:

1. the number of occurrences within a given time period;

   "the frequency of modulation was 40 cycles per second"
   "the frequency of his seizures increased as he grew older"
   

2. the ratio of the number of observations in a statistical category to the total number of observations

3. the number of observations in a given statistical category

例句

用作名词 (n.)

1. 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。
2. Accidents are happening with increasing frequency.
   事故正在愈加频繁地发生。
3. He wrote to both with tolerable frequency.
   他和他们通信，相当频繁。
4. He varied the transmission frequency.
   他变换了无线电传送的频率。
5. He tuned his radio to the police frequency.
   他把无线电调到警方的频率。
6. The pitch depends on the frequency.
   音调的高低是由频率决定的。
7. 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.)

1. 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。
2. The frequency of his visits annoyed her.
   她对于他的频繁来访感到厌烦。
3. Accidents are happening with increasing frequency.
   事故发生得越来越频繁。
4. 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。
5. 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。

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

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

词源解说

• ☆ 直接源自拉丁语的frequentia，意为频率，周率。

近反义词

【近义词】

• repetition