frequency
gb/fɹˈikwənsi/ us/fɹˈikwənsi/
B1
英语
~ 2500
义项
0 个义项
名词
B1
quantity
1
Rate of occurrence over time
How often something happens during a certain time.
用法模式：
the frequency of [something]
常见错误：
Learners sometimes confuse 'frequency' with 'speed'. Frequency is how often something happens, not how fast it happens.
近义词
rate (More general term for speed or pace of occurrence; not limited to repeated events.)
|
occurrence rate (Specifically refers to how often something happens, similar to 'frequency' but more formal.)
反义词
rarity (Refers to something happening very seldom, opposite of high frequency.)
搭配
high frequency
|low frequency
|frequency range
|frequency band
|frequency measurement
主题
science
|statistics
|daily life
|core_vocabulary
例句
- The frequency of buses has increased during rush hour.
- Doctors recommend regular exercise at a frequency of three times a week.
- This radio works on a frequency of 101.4 FM.
- The frequency of earthquakes in this region has risen.
- We measured the frequency of her visits to the library.
学习者例句
- The frequency of the trains is every 10 minutes.
- I listen to music on this radio frequency.
- The frequency of rain is high in April.
- We check the machine’s frequency every week.
名词
technical
B2
quantity
2
Wave cycles per second
How many times a wave repeats in one second, measured in hertz.
用法模式：
[wave/signal] frequency
常见错误：
Learners may confuse 'frequency' with 'volume' when talking about sound. Frequency is how fast the waves repeat, volume is how loud it is.
近义词
pitch (In sound context, refers to perceived highness or lowness, related to frequency but subjective.)
反义词
wavelength (Inverse physical property related to frequency; higher frequency means shorter wavelength.)
搭配
radio frequency
|signal frequency
|ultrasonic frequency
|sound frequency
主题
science
|technology
例句
- The radio operates on a frequency of 98.3 MHz.
- Bats use high-frequency sounds to navigate.
- This device can detect frequencies up to 20 kHz.
- We adjusted the frequency to get a clearer signal.
学习者例句
- The TV works on this signal frequency.
- We measure the sound's frequency in hertz.
- A high frequency sound can be hard to hear.
- The radio changes to a different frequency.
语法
词典原形
frequency
IPA
GB/fɹˈikwənsi/
US/fɹˈikwənsi/
音节与重音
fre - quency （2 个音节）
Stress on 1st syllable (fre)
词形变化
Noun
- Base: frequency
- Plural: frequencies, frequency
词族
Forms
frequencies
noun
Core family
frequent
adjective B1
frequently
adverb A2
Negative and opposite forms
infrequent
adjective
infrequently
adverb
相关表达
high frequency
1/hˈaɪ fɹˈikwənsi/
fixed phrase
Happening often or fast cycles
Happening very often, or with many cycles per second (in science).
例句
- High-frequency trading happens in milliseconds.
- This machine works at a high frequency.
low frequency
1/lˈoʊ fɹˈikwənsi/
fixed phrase
Happening rarely or slow cycles
Happening not often, or with few cycles per second (in science).
例句
- Low-frequency sounds can travel long distances.
- Low-frequency events are harder to study.
radio frequency
1/ɹˈeɪdioʊ fɹˈikwənsi/
fixed phrase
technical
Electromagnetic range for communication
A range of electromagnetic waves used for sending and receiving signals like radio or TV.
例句
- The police use a special radio frequency for communication.
- You need to tune to the right radio frequency.