event
重大事件
Similar to 'important event', often implying large scale.
类似于 'important event'，通常暗示大规模。
大事件
Refers to an event of large scale or high importance, can be a happening, social occasion, or competition.
指规模宏大或非常重要的事件，可以是发生的事情、社交场合或比赛。
主要活动
The central or most important event in a series or on an occasion.
一系列活动或某个场合中最核心、最重要的活动。
时事
Events happening now or in the recent past; often refers to news and politics.
现在或最近发生的事件；通常指新闻和政治。
悲剧性事件
An event causing great sadness, especially one involving death or suffering.
引起巨大悲伤的事件，尤指涉及死亡或痛苦的事件。
一系列事件
A number of events of a similar type that happen in succession.
接连发生的多个同类事件。
万一发生某事
A formal way of saying 'if something happens'. Used for possible future situations.
一种正式的说法，意为“如果某事发生”。用于可能的未来情况。
在...项目中
Used to specify participation in a particular race or competition.
用于指明参加了某项特定的比赛或竞赛。
参加活动
To be involved in an activity, race, or competition with other people.
与他人一起参与一项活动、比赛或竞赛。
庆祝活动
To acknowledge a significant or happy event with a social gathering or enjoyable activity.
通过社交聚会或愉快的活动来纪念一个重要或快乐的事件。
举办活动
To organize and present a public event, often one that is large or complex.
组织并呈现一个公共活动，通常是大型或复杂的活动。
纪念活动
To recall and show respect for a past event, often a solemn one.
回忆并对过去的事件表示敬意，通常是庄重的事件。
叙述事件
To tell someone about something; give an account of an event or experience.
告诉某人某事；叙述一个事件或经历。
事件发生
Used to describe an event taking place, often unexpectedly.
用于描述一个事件的发生，通常是出乎意料的。