Pandemic experts explain a second wave does not necessarily entail any change in the composition of the virus.

VOA: standard.2009.09.04

PROFESSOR BAWENDI: So the question was, for an isothermal expansion, delta u does not change, therefore, The answer is that's true only for an ideal gas.

你的问题是，在等温过程中，内能是否，这只对理想气体成立。

麻省理工公开课 - 热力学与动力学课程节选

For isothermal expansion, that means that delta u does not change, but delta q is equal to delta w?

在等温过程中，是不是内能不变，Δq等于Δw？

麻省理工公开课 - 热力学与动力学课程节选

Hajji says he does not expect the new Tunisian Writers' Syndicate will change the atmosphere in Tunisia.

VOA: standard.2010.08.09

But adding a constant velocity to objects does not change the fact that those which were maintaining constant velocity still maintain a constant velocity.

但是加上一个恒定速度并不会改变下述事实,即,那些正在匀速运动的物体,仍然保持匀速运动

耶鲁公开课 - 基础物理课程节选

He says the error does not alter the broad picture of manmade climate change.

VOA: standard.2010.01.23

PROFESSOR: No. The goal does not change, it's still the same goal. What changes?

教授：不，我们的目标没有变，那变化的是什么呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

Baswedan says the personal affection Indonesians hold for President Obama and the United States will not last if he does not deliver on his promise of change.

VOA: standard.2010.06.21

It has many of the opposite effects that insulin has, so not only does insulin go down and stop these behaviors but a new hormone called glucagon gets produced which reinforces that change.

它产生的很多效应都与胰岛素相反,所以不仅是胰岛素的减少,导致血糖水平停止下降,胰高血糖素这种新激素的产生,也会强化该效应

耶鲁公开课 - 生物医学工程探索课程节选

Does it not change?

还是没有？

麻省理工公开课 - 热力学与动力学课程节选