这证明我们的免疫系统在我们衰老时确实不能很好地发挥作用。

This is evidence that our immune system really doesn't function so well when we age.

youdao

我觉得，我们大学之前的教育系统大体上在一种世界范围内并不是很好。

I think our pre-college education system is generally not great in sort of the world scale.

youdao

在计划改变能源系统时，我们必须考虑的另一种动力是人力资源动力。

Another type of momentum we have to think about when planning for changes in our energy systems is labor-pool momentum.

youdao

Let's imagine maybe instead we just immediately dropped the pressure let the system expand against the lower pressure.

现在假设,我们很快地降低压力,让系统在低的外压力下膨胀。

麻省理工公开课 - 热力学与动力学课程节选

These are physical knobs that are available us as experimentalists. And so when we turn these knobs on our system, we want to know how the enthalpy is changing for that system.

这些都是我们做实验可,以得到的物理变量,所以当我们在系统中,改变这些量的时候。

麻省理工公开课 - 热力学与动力学课程节选

Then we realize once again that we can only know what it is if we come to understand--in this case, probably, it's best to say a cultural system, understood as a semiosis, within which it appears.

这样我们就又明白了,只有在一个特定的文化系统中,我们才能认识一个符号。

耶鲁公开课 - 文学理论导论课程节选