While the queue is unbound in size, enabling adds to return immediately, one cannot take an element from the queue until the delay time has expired.

因为队列的大小没有界限，使得添加可以立即返回，但是在延迟时间过去之前，不能从队列中取出元素。

youdao

While the queue is unbound in size, enabling adds to return immediately, one cannot take an element from the queue until the delay time has expired.

因为队列的大小没有界限，使得添加可以立即返回，但是在延迟时间过去之前，不能从队列中取出元素。

youdao