在某一时刻

For that question: how a probability event becomes to be a certainty event after some time.The answerer is that the Probability is changing along the development of time since many factors will affect the Probability in that time interval and Probability=1 at the point it happened.

又如生化反应，在刚开始的时候，那些化学物质发生反应的概率可能很小，加入催化剂（或者即使不加入催化剂，由于各物质的溶度随着反应进行，时间的推移而改变）影响着后来某一时刻这些化学物质能否完全反应。

Because of the static characteristic of the shape-model which can't be expressed by time obviously, it is hard to get characteristics of motion by integral and differential coefficient directly.

在进行运动特性分析时，由于姿态方程本身仅表示某一时刻瞬间的形态特性，没有显式的时间参量，很难通过纯数学的微分与积分方式求解运动特性。

At some point, somebody—their parents, their lovers, Lady Luck—did them dirty.

在人生的某一时刻，有人（他们的父母、情人、命运）害了他们。

He is not dependent upon his best moment in any one day.

他并不依赖于自己在某一天的最佳时刻。

But in moments like this, the things which one sees vacillate and are precipitated, and one pauses for nothing.

但是在那样的时刻，人们所见到的事都是在瞬息万变之中，注意力不会停留在某一件事物上。

You can run more than one application at a time,''.

在某一''。'时刻'。

All the love stories have something in common. Once supra skytop sneakers upon a time, I have thatexperience too.

所有的爱情故事都有相同之处，在我生命的某一时刻我也经历过这些，然而我已记不得这些。

But in moments like this, the things which one sees vacillate are precipitated, one pauses for nothing.

但是 dddTt 在那样的时刻，人们所见到的事都是在瞬息万变之中，注意力不会停留在某一件事物上。

"Based on the incidence results ... and presupposing equal risk distribution, without therapeutic intervention, most patients should theoretically experience at least one episode of avascular necrosis at some point in their life," Dr. Mistry wrote.

Mistry博士指出，基于发生率的结果……以及事先假设的相同风险分布，若不接受任何治疗性干预措施，理论上大部分患者在其生命中的某一时刻至少会发作1次非血管性坏死。

A moment is captured; with imagination, it can be recreated at other places and at other times.

某一时刻一旦被捕捉到，通过想象，人们可以在其他的场合、其他的时间点上将它重新创造。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。