记忆方法
将“frequency”拆分为“freq”和“uency”，联想“freq”像高频音乐，而“uency”是连续的“u”，像一串不断重复的音符。这样，你就可以将“frequency”记忆为“高频连续重复的频率”。
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中文词源
frequency 频率
来自frequent, 频繁的。用于语音学名词。
英语词源
- frequency (n.)
- 1550s, "state of being crowded" (now obsolete); 1640s, "fact of occurring often;" from Latin frequentia "an assembling in great numbers, a crowding; crowd, multitude, throng," from frequentem (see frequent). Sense in physics, "rate of recurrence," especially of a vibration, is from 1831. In radio electronics, frequency modulation (1922, abbreviated F.M.) as a system of broadcasting is distinguished from amplitude modulation (or A.M.).
权威例句
- 1. Their instruments detected very faint radiowaves at a frequency of 3 kilohertz.
- 他们的仪器检测到一个3千赫的微弱无线电波。
- 2. Fatal road accidents have decreased in frequency over recent years.
- 近年来致命交通事故发生率已经下降。
- 3. 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.
- 4. The drug can reduce the frequency and severity of attacks.
- 这种药能降低发病次数和严重程度.
- 5. Fatal accidents have decreased in frequency over recent years.
- 近年来死亡事故发生的频率已经下降.