occur
第三人称
occurs
现在进行时
occurring
过去式
occurred
过去完成时
occurred
1
发生, 出现
to come to be or take place, especially unexpectedly or naturally
- Accidents occur unexpectedly, so it's crucial to drive safely.
事故会意外地发生，因此安全驾驶至关重要。
- Natural disasters, such as earthquakes, frequently occur in seismic regions.
自然灾害，如地震，经常在地震带发生。
- Last night, a power outage occurred in the neighborhood.
昨晚，社区里发生了停电。
- The meeting occurred as scheduled despite the bad weather.
尽管天气恶劣，会议还是按计划举行了。
- Right now, a heated debate is actively occurring in the conference room.
现在，会议室里正在积极发生一场激烈的辩论。
2
存在, 出现
to be present or found in a particular place
- The species occurs naturally in tropical rainforests.
该物种自然出现在热带雨林中。
- Minerals like quartz and feldspar occur in many types of rocks.
像石英和长石这样的矿物在许多类型的岩石中出现。
- The disease tends to occur more frequently in older adults.
这种疾病往往在老年人中更频繁地发生。
- The phenomenon of bioluminescence occurs in certain marine organisms.
生物发光现象在某些海洋生物中发生。
- Certain bacteria occur in the human gut.
某些细菌存在于人类肠道中。