You pass in a function to both of them; the function is called when something happens.
您传入一个函数给这两者，当有事发生时调用此函数。
Adverbials of manner, place, and time are used to say how, where, or when something happens.
方式状语，地点状语和时间状语用以表示某事发生的方式，地点和时间。
Even if you do nothing other than bookmark these articles, you will be that much more prepared if and when something happens.
即使您只是将这些文章加入书签，万一遇到某个困难，您也会有备无患。
Using a single combined log file makes it somewhat simpler to collect and scan data for anomalies when something happens, and to manage the growth and rotation of logs files.
使用单一的组合日志文件可以在发生事件时简化收集和扫描反常情况的数据，并简化管理日志文件的增长和轮替。
Modals do not normally indicate the time when something happens.
情态动词一般不会指明某事发生的时间，不过也有少数例外。
Jack is indecisive and can't make decisions when something happens.
杰克是个优柔寡断的人，遇事难作决断。
When something happens in Haiti or Hunan, the rest of us learn about it in real time - from real people.
在海地或湖南发生什么情况时，我们其余的人都能从当事者那里实时得知。
When something happens that disrupts your life (a car accident, a health issue, a job loss), do you tend to think that this is the end or the beginning?
当某些事情打乱了你的生活(车祸、疾病、失业等)，你会认为这是人生的终点，还是另一个起点？
When something happens that disrupts your life (a car accident, a health issue, a job loss), do you tend to think that this is the end or the beginning?
当某些事情打乱了你的生活(车祸、疾病、失业等)，你会认为这是人生的终点，还是另一个起点？
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