| 单词 | occur |
| 释义 | occur —occur /əˈkɜːr/ aep /-ˈkɝː/ verb [I + adv/prep] (-rr-) (EXIST) ↑Verb Endings for occur ► F0 to exist or be present in, among, etc.: » Violence of some sort seems to occur in every society.» Minerals occur naturally in the Earth's crust.Thesaurus+: ↑Existing and beingCommon mistake: occur! Warning: Check your verb endings!! Many learners make mistakes when using occur in the past tense.! The past simple and past participle have 'rr'. Don't write 'occured', write occurred.! The -ing form is occurring.verb [I] (-rr-) (HAPPEN) ↑Verb Endings for occur ► B2 (especially of accidents and other unexpected events) to happen: » An accident involving over ten vehicles has occurred in the east-bound lane.» If any of these symptoms occur while you are taking the medicine, consult your doctor immediately.Thesaurus+: ↑Occurring and happening• • • Extra Examples:» Many suicides occur in prisons.» We are of course investigating how an error like this could have occurred.» Evolution occurs as a result of adaptation to new environments.» Evidence suggests that errors may indeed be occurring.» The partition of India occurred in 1948.Common mistake: occur! Warning: Check your verb endings!! Many learners make mistakes when using occur in the past tense.! The past simple and past participle have 'rr'. Don't write 'occured', write occurred.! The -ing form is occurring. |
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