英语单词 | frequency |
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英美音标 | 英 ['friːkwənsi] 美 ['friːkwənsi] |
中文释义 | n.频繁;频率 |
英语例句 | (1) Accidents on that highway are happening with increasing frequency. (2) Accidents are happening with increasing frequency. (3) He wrote to both with tolerable frequency. (4) He varied the transmission frequency. (5) He tuned his radio to the police frequency. (6) The pitch depends on the frequency. (7) We can often correlate age with frequency of illness. |
中文例句 | (1) 那条高速公路上车祸发生得越来越频繁。 (2) 事故正在愈加频繁地发生。 (3) 他和他们通信,相当频繁。 (4) 他变换了无线电传送的频率。 (5) 他把无线电调到警方的频率。 (6) 音调的高低是由频率决定的。 (7) 年龄的大小往往与发病率有关。 |
vocabulary简明 | Frequency measures how often things repeat over time. City buses often reach stops at a frequency of every 15 minutes, unless it's snowing or raining really hard. In that case, the frequency will slow. |
vocabulary扩展 | You probably know the word frequent, a synonym for often. So, it is tempting to think frequency describes something that happens often. However, this isn't true: frequency describes any rate of time at which something repeats. For example, from Earth, Halley's Comet is visible at a frequency of 76 years — it's not frequent, but it is on schedule. |
柯林斯解释 | 1 [N-UNCOUNT 不可数名词]频率;发生次数 The frequency of an event is the number of times it happens during a particular period.
2 [N-VAR 可变名词](声波或无线电波的)频率,周率 In physics, the frequency of a sound wave or a radio wave is the number of times it vibrates within a specified period of time.
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