碰巧的

I know the answer of your question by chance.

我碰巧知道你那道问题的答案。

I know the answer of that question by chance.

我碰巧知道你那道问题的答案。

I know that your question's answer by chance.

我碰巧知道你那道问题的答案。

I know the key to the question by chance.

我碰巧知道你那道问题的答案。

Then it happened that I had to answer the call of nature.

当时我碰巧要回答自然的召

I happen to catch a glimpse of the video on a television .

碰巧看了电视上的录像。

To discover by accident; to come upon by chance; an unexpected meeting

意外地发现；碰巧遇到；意外的会面

I had someone at Christie's put them on hold.

碰巧我有个在奥斯陆的朋友

So if you happen to live in Cornwall, The Isle of Man, or even the west coast of Scotland

所以，如果你碰巧住在康沃耳郡、曼岛或者是苏格兰的西海岸

After I moved to New York, I happened to take the dance class in a very famous New York dancing school.

来纽约之后，我碰巧去了一个在纽约很出名的舞蹈学校上跳舞课。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。