occurrence

US /əˈkɝː.əns/
UK /əˈkɝː.əns/
"occurrence" picture
1.

发生, 出现, 频率

the fact or frequency of something happening

:
The occurrence of natural disasters has increased.
自然灾害的发生频率增加了。
This is a rare occurrence.
这是一个罕见的事件
2.

出现, 发生次数

a particular instance of something happening

:
Each occurrence of the word was highlighted.
该词的每次出现都被高亮显示。
The program counts the occurrences of specific characters.
程序计算特定字符的出现次数