Cause: Some part of the code is descending two levels per method call without dispatching appropriately on the second descent.

起因：代码的某些部分在每次方法调用中下行了两级且第二次下行时调度不当。

youdao

So let's try to call the update_game 25 times per second, no more, no less.

所以尝试每秒运行update_game 25次吧，不要多也不要少。

youdao

If I flash it, if I strobe it - twice per second — - we call that two Hertz — so my strobe is two times per second.

如果每秒，摄像机闪两次-，我们管这个叫2赫兹-，每秒闪两次。

youdao

Nearly free, call-and-install, 1.5-megabit-per-second bandwidth to home offices and handhelds would be radical.

FORBES: Digital Rules

So whilst the "official" definition of 4G talks about one gigabit per second (Gbps) speeds, the marketing departments of mobile operators call 4G anything over 30Mbps or so.

BBC: Viewpoint: What 4G means for you and your phone