The idle boy is almost invariably poor and miserable; the industrious boy is happy and prosperous.

懒散的人总一成不变地贫穷着、痛苦着，勤奋的人快乐而且充满希望的。

He says that our ideas don't go straight from our minds into our readers' minds unchanged.

他说，我们的思想不会一成不变地从我们的头脑中直接进入读者的头脑。

And I'm the only waitress working as usual.

而且就我一人万年不变地忙来忙去。

I appealed to Hans. He maintained his course inflexibly.

我向汉斯求助。他一成不变地坚持自己的路线。

This might actually be better than sticking to one path without any change.

这实际上可能比一成不变地坚持一条路径要好。

They had to learn all the chants and prayers off by heart so that they were preserved and handed down, unchanged.

他们必须背诵赞歌和祷，以便将它们保存下来，不变地流传下去。

Do you think these great houses like Downton Abbey are going to go on just as they are for another 40 years?

你真觉得唐顿庄园这样的宅子还能一成不变地继续运作四十年吗？

We listen to differences; we discount sounds that remain the same.

我们对保持不变的声音逐渐地不理会。

His employment may, upon most occasions, be as constant as he pleases.

在大多数情况下，他的工作可以随心所欲地保持不变。

It does not mean that prices remain the same over time or that some ideal pattern of allocation of resources remains the same indefinitely.

这并不意味着价格随着时间的推移保持不变，也不意味着某种理想的资源配置模式无限期地保持不变。

The first is the invention of writing, which alone gives human nature the power of transmitting, without alteration, its laws, its contracts, its annals, and its discoveries.

第一字的发明， 它赋予人性以不变应万变地传播其法律、契约、编年史和发现的能力。

They cultivated also a specific poetic tradition, the formal character of which remained surprisingly constant until the termination of their rule by the Norman-French invaders six centuries later.

他们还培养了一种特定的诗歌传统，其形式特征出人意料地保持不变，直到六世纪后诺曼-法国侵略者结束了他们的统治。

My feelings remain unchanged, as they ever will; and why should I suffer the pain of a delay in giving them vent, which can be productive of no earthly good?

我的感情一如既往地保持不变；为什么我要忍受延迟发泄的痛苦，这对尘世没有好处？

It will be remembered that the obstinate fellow had insisted on keeping his famous family watch at London time, and on regarding that of the countries he had passed through as quite false and unreliable.

我们总还记得这顽固的伙子曾一直让他那传家之宝的大银表，一成不变地保持着伦敦时间。他在沿途各地都一直认为别人的钟表所指示的时间错误的。

They were mostly self-pollinating: that is, the crop varieties could pollinate themselves and pass on their own desirable genes unchanged, instead of having to hybridize with other varieties less useful to humans.

它们大多自花授粉的：也就说，农作物品种可以自行授粉，并不变地传递自己想要的基因，而不必与其他对人类不太有用的品种杂交。

And it always seemed to be the wisdom that only these two survived for maybe 6 million years or more without changing and this caused quite a bit of doubt to us, so we thought we'd re-evaluate all the material.

我们一直认为只有这两种禽龙一成不变地存活了 600 万年或更长时间，这让我们产生了不少怀疑，所以我们认为应该重新评估所有的材料。