Probably in no single instance should we know what to do.

可能在任何一个实例中我们都应该知道该怎么做。

Every single instance latched on to this narrative, which is one of decline.

每一个实例都抓住了这种叙述，这是一种衰落。

I will give only a single instance, which, though a simple one, interested me.

我只举一个例子， 虽然很简单， 但我很感兴趣。

We know not exactly what the checks are even in a single instance.

即使在单个实例中， 我们也不知道确切的检查是什么。

As just stated, the principle applies only to the verification of our expectation in a single fresh instance.

如前所述，该原则仅适用于在单个新实例中验证我们的期望。

It was the single instance within reach of his vision of anything that had ever been alive and had had a body to save, as he himself had now.

在他的视野范围内，这是唯一一个曾经活着并且有身体需要拯救的东西，就像他现在一样。

From the point of view of the speaker, a single instance of the use of a word consists of a certain set of movements in the throat and mouth, combined with breath.

从说话者的角度来看，一个词的单次使用包括喉咙和嘴巴的一组特定动作，再加上呼吸。

The other point is more interesting, and of more philosophical importance. It is, that we may sometimes know a general proposition in cases where we do not know a single instance of it.

另一点更有趣，也更具哲学意义。也就是说，有时我们可能知道一个一般命题，而我们不知道它的单个实例。

To give a single instance: in the last edition of Dr. Asa Gray's " Manual of the Flora of the Northern United States, " 260 naturalised plants are enumerated, and these belong to 162 genera.

举一个例子：在阿萨·格雷博士最新一版的《美国北部植物群手册》中， 列举了260种归化植物， 属于162属。

Then we may say that a single instance of the spoken word consists of a series of movements, and the word consists of a whole set of such series, each member of the set being very similar to each other member.

那么我们可以说口语单词的单个实例由一系列动作组成，而单词由一整套这样的系列组成，该系列的每个成员彼此非常相似。