这个helper还对在它的生命周期内如何修改类路径有一些限制。

This helper also carries some restrictions on how the classpath can be modified during the lifetime of the helper.

youdao

有一些情形下，程序经过了修改，以使得难以利用它们来使用环境变量。

In some cases, programs have been modified to make it harder to exploit them using environment variables.

youdao

可能是我有一些多疑，总觉得会同时修改队列中的所有设备，或者不小心修改为一个错误的值。

Maybe it's just me, but I get paranoid that maybe I changed both devices in the queue or accidentally changed the wrong device.

youdao

And I picked looking at methane so we could see if there are other factors that we're not considering, that we need to maybe tweak our model a little bit, and I think we'll find that we do if we take a look at a polyatomic molecule, methane, CH4 so c h 4.

我选择甲烷这个例子，我们可以看到,如果有一些我们没有考虑到的因素，我们需要修改一下我们的模型，我们看一看,甲烷CH4这个多原子分子，就会知道这一点，甲烷。

麻省理工公开课 - 化学原理课程节选