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

懒散人总是一成不变地贫穷着、痛苦着，勤奋人是快乐而且充满希望。

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

说，我们思想不会一成不变地从我们头脑中直接进入读者头脑。

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。一成不变地坚持自己路线。

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.

们必须背诵赞歌和祷文，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宅子还能一成不变地继续运四十年吗？

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

我们对保持不变声音逐渐地不理会。

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

在大多数情况下，工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推移保持不变，也不意味着某种理想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.

第一个是文字发明， 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.

们还培养了一种特定诗歌传统，其形式特征出人意料地保持不变，直到六个世纪后诺曼-法国侵略者结束了们统治。

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?

我感情一如既往地保持不变；为什么我要忍受延迟发泄痛苦，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.

我们总还记得这个顽固小伙子曾一直让那个传家之宝大银表，一成不变地保持着伦敦。在沿途各地都一直认为别人钟表所指示是错误。

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.

它们大多是自花授粉：也就是说，农物品种可以自行授粉，并不变地传递自己想要基因，而不必与其对人类不太有用品种杂交。

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，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材料。