您要查找的是不是：
- The police asked me to describe exactly how it happened. 警察让我描述一下这事是怎样发生的。
- We never knew for certain how it happened. 究竟是怎么发生的，我们始终未搞清楚。
- We could not ascertain how it happened. 我们没能弄清它是怎样发生的。
- I can quite see how it happened. 我知道是怎样引起的。
- I don't even know how it happened. 我也不知道是怎么发生的。
- We are puzzled as to how it happened. 关于它是如何发生的，我们很迷惑
- Woo,that's really cool,and that's how it happened. 哇，这太酷了。 这就是它的由来。
- We could not ascertain how it happened . 我们没能弄清它是怎样发生的。
- I'm curious asto how it happened. 我很好奇到底发生了什么。
- Why brood on how it happened? The thing to do is to put it right. 干吗要老去想那件事是怎么发生的?改正就好了。
- How it happened is unclear; a judicial inquiry has begun. 具体是怎样的情况还不清楚，司法调查已经开始进行。
- I don't know how it happened; I lost my nerve completely then. 我不知道事情是怎么发生的，当时我惊惶失措，全然不知。
- Mr Fitzgibbon says what he did was wrong but could not explain how it happened. 菲茨吉本说，没有申报是他的错，但他却无法解释其中的原因。
- He gladly showed it to me; I admired it and asked him to tell me all about how it happened to be drawn. 他很高兴的取出来给我看，我表示羡慕、赞美，同时请他告诉我，开出这张支票的经过情形。
- I don't know how it happened genetically,but that baby canary was bright orange. 我并不清楚遗传的方式，但这只小金丝雀却是明亮的橙黄色。
- It's possible they ate a poisonous mushroom or something similar. The doctors are not exactly sure how it happened. 有可能是他们吃了毒菇或类似的东西。医生也不太确定怎么回事。
- I cannot imagine how it happened that my brother was picked up in that disreputable nightclub. 我无法想象我弟弟怎么会在那家声名狼藉的夜总会中被人逮
- If there is a delay the memory stops recollecting what happened and begins to rationalize how it happened. 如果耽误一段时间，脑子就回忆不起发生的情况了，而只能靠推理对发生的情况作出解释了。
- A very thin layer of bone was peeled away, and neither Vujacic nor the Lakers know how it happened. 骨头最脆弱的环节撕裂了，沙沙和其他湖人队友对此都毫无头绪。
- I don't know how it happened genetically, but that baby canary was bright orange. 我并不清楚遗传的方式，但这只小金丝雀却是明亮的橙黄色。
