B1 happening often频繁发生的;常见的
More examples
There are frequent sailings from Dover.
The two countries have had frequent border disputes.
All hi-tech weaponry demands frequent servicing to ensure accuracy.
Car crashes are so frequent that they don't rate a mention in the newspaper unless a lot of people are killed.
He is a frequent flyer.
to be in or visit a particular place often常去,常到
adjective
adjective
frequent | ➔ | persistent | ➔ | constant |
regular | perpetual | |||
habitual | continual | |||
continuous |
adverb
adverb
adverb
especially
adverb
adverb
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