The effect of this is that if an event handler implements a request-response operation, then only one instance of such an event handler may be active at any point in time.

此规定的结果是，如果某个事件处理程序实现了一个请求-响应操作，则在任何时间点，只能有一个此类事件处理程序的实例处于活动状态。

youdao

Loading an island with an active event now shows the remaining time at the beginning.

用一个活跃的事件加载一个岛现在显示在开始的剩余时间。

youdao

Only one MPM can be active at one time, and it must be compiled in statically with --with-mpm=(worker|prefork|event).

每次只能有一个 MPM 是活动的，必须使用 --with-mpm=(worker|prefork|event) 静态编译。

youdao

Also of note: At the time, it seemed that he might return from the Olympics to active management, but in any event, he did not.

CNN: Facts don't support Obama's charges against Romney