Hence rudimentary organs in the adult are often said to have retained their embryonic condition.

因此，人们常说成人的不发达器官保留了它们的胚胎状态。

Rudimentary organs, from being useless, are not regulated by natural selection, and hence are variable.

残迹器官由于无用，不受自然选择的调节，因此是可变的。

Rudimentary organs will speak infallibly with respect to the nature of long-lost structures.

残迹器官将准确无误地说明失传已久的结构的性质。

Rudimentary organs in the individuals of the same species are very liable to vary in the degree of their development and in other respects.

同一物种个体的残迹器官在发育程度和其他方面很容易发生差异。

The importance of embryological characters and of rudimentary organs in classification is intelligible, on the view that a natural arrangement must be genealogical.

胚胎学特征和不发达器官在分类中的重要性是可以理解的， 因为自然排列必须是系谱学的。

Thus we can understand the greater size of rudimentary organs in the embryo relatively to the adjoining parts, and their lesser relative size in the adult.

因此，我们可以理解胚胎中的不完整器官相对于相邻部分的尺寸较大， 而在成体中它们的相对尺寸较小。

It is an important fact that rudimentary organs, such as teeth in the upper jaws of whales and ruminants, can often be detected in the embryo, but afterwards wholly disappear.

一个重要的事实是， 鲸鱼和反刍动物上颚的牙齿等基本器官通常可以在胚胎中检测到，但随后就完全消失了。

On the view of descent with modification, the origin of rudimentary organs is comparatively simple; and we can understand to a large extent the laws governing their imperfect development.

从变异遗传的观点看， 残迹器官的起源比较简单；我们可以在很大程度上理解支配它们不完全发展的规律。

Rudimentary organs may be compared with the letters in a word, still retained in the spelling, but become useless in the pronunciation, but which serve as a clue for its derivation.

残迹器官可以与单词中的字母进行比较，在拼写中仍然保留， 但在发音中变得毫无用处，但可以作为其推导的线索。

Rudimentary organs may be utterly aborted; and this implies, that in certain animals or plants, parts are entirely absent which analogy would lead us to expect to find in them, and which are occasionally found in monstrous individuals.

残存器官可能会完全流产； 这意味着，在某些动物或植物中，完全没有某些部分可以使我们期望在它们中找到类比，而这些部分偶尔会在可怕的个体中发现。

A structure which has been developed through long-continued selection, when it ceases to be of service to a species, generally becomes variable, as we see with rudimentary organs; for it will no longer be regulated by this same power of selection.

通过长期持续的选择而发展起来的结构， 当它不再为物种服务时， 通常会变得可变， 就像我们在退化器官中看到的那样；因为它将不再受同样的选择能力的支配。