occur
verb (formal)Verb Forms
Phrasal Verbs| present simple I / you / we / they occur | |
| he / she / it occurs | |
| past simple occurred | |
| past participle occurred | |
| -ing form occurring |
- [intransitive]
to happen 发生；出现 When exactly did the incident occur? 这一事件究竟是什么时候发生的？ Something unexpected occurred. 发生了一件出乎意料的事。 Three major events occurred in my life that year. 那一年我的生活发生了三件大事。 These chemical changes occur naturally. 这些化学变化是自然发生的。 More deaths occur in winter. 冬天死亡的人较多。
Extra ExamplesOpportunities for learning occur spontaneously every day. 学习的机会每天都会自然而然地出现。 A new outbreak of smallpox occurred in 1928. 1928 年爆发了新一轮的天花。 Impact occurred seconds after the pilot signalled for help. 飞行员发出求救信号数秒钟之后就发生了碰撞。 Major economic changes have occurred recently. 最近发生了一些重大经济变化。 Peasant rebellions occurred throughout the 16th century. 农民暴动在整个 16 世纪不断发生。 The collision occurred near the hospital. 撞车事故发生在医院附近。 The explosion occurred just after midday. 爆炸就发生在午后。 The fits usually occur at night. 这种病一般在晚上发作。 These climate shifts occurred over less than a decade. 发生这些气候变化不超过十年。 Travellers complained about lack of information when travel delays occurred. 旅客抱怨发生交通延误时没有人提供信息。 Such storms are likely to occur for the next six to ten weeks. 这种风暴可能会在接下来的6到10周内发生。 The disease can occur at any time of the year. 这种疾病可能在一年中的任何时候发生。 These symptoms occur in some patients but not in others. 这些症状在一些病人身上出现，但在其他病人身上没有。 This rally usually occurs between Christmas and New Year's day. 这种集会通常发生在圣诞节和元旦之间。 Five attacks occurred in a 12-day period. 12天内发生了5起袭击事件。 Several conversations occurred simultaneously. 几个对话同时发生。 The fractures occurred as a direct result of osteoporosis. 骨折是骨质疏松症的直接结果。
Oxford Collocations Dictionaryadverb- commonly
- frequently
- often
- …
- be likely to
- tend to
- be unlikely to
- …
- among
- in
- [intransitive] + adv./prep.
to exist or be found somewhere 存在于；出现在 Sugar occurs naturally in fruit. 水果天然含糖分。 naturally occurring chemicals in the brain 大脑中自然产生的化学物质 Lemurs occur in the wild only in Madagascar. 狐猴仅存在于马达加斯加的野生环境中。 Infected plants frequently occur in patches. 受感染的植物经常出现在斑块中。 Calluses typically occur on the bottom of the feet and heel. 老茧通常出现在脚底和脚跟。
Oxford Collocations Dictionaryadverb- commonly
- frequently
- often
- …
- be likely to
- tend to
- be unlikely to
- …
- among
- in
More Like This Consonant-doubling verbsConsonant-doubling verbs
Word Originlate 15th cent.: from Latin occurrere ‘go to meet, present itself’, from ob- ‘against’ + currere ‘to run’.