为什么会出现这种情况 英语怎么说

手机的是事，同是也是百度知道的手机客户端不太好。我的手机其他软件运行的挺好的。一到知道就出现卡屏，抽奖还能闪蓝屏。

why did it happen?
how did we come to this?
why did this situation occur?楼上的语法有毛病。

why did it happen?

What is the reason for such an occurrence?

Why Something Like This Can Happen?