occurrence
单词辨析：
可指小事件，也可指严重的、重要的或暴力的事件。
The incident made the listeners burst into laughter.
这个小插曲使听众哄然大笑。
Many political incidents go unreported.
很多政治事件都没有报道。
指导致某人受伤或某物受损的事故，也可指并非有意造成的意外事件。
A traffic accident occurred this morning.
今天早上发生了交通事故。
I'm sorry about knocking over your coffee cup - it was an accident.
我很抱歉打翻了你的咖啡杯——这是个意外。
尤指重要的事件或大事，也可指有意思或不寻常的事件。
The discovery of X-rays was a big event in the history of physics.
X射线的发现是物理学史上的重大事件。
Getting married was one of the major events in his life.
结婚是他一生中的大事之一。
指影响不大的小事故或小错误。
He was upset by a series of mishaps.
一连串的倒霉事弄得他很心烦。
She had a slight mishap with the expensive vase.
她把那个贵重的花瓶弄坏了一点儿。
指生活中发生的一般的或偶然的事件。
Traffic jams are a common occurrence in that area.
那一地区常常堵车。
Extreme weather is a rare occurrence in that country.
那个国家不常出现极端天气。
相关例句：
Middleaged and elderly people should take healthy life style to prevent and delay the occurrence of osteoporosis.
建议中老年人应采取健康的生活方式，预防和推迟老年性骨质疏松的发生。
Their morphology, damage and occurrence rule were introduced, and the integrated control technique was given.
并介绍了其形态、为害和发生规律，提出了综合防治技术。
The food queues have become a daily occurrence across the country.
排队购买食品的长龙已成了全国各地每日可见的景象。
This is quite a common occurrence.
这种现象很平常。
The occurrence of a loss of the ability to perceive and respond.
失去感知和反应的能力。
The END and ERROR events represent the end of the connection or the occurrence of an error.
END和ERROR事件代表着连接结束或出现了错误。