When I was researching this, it seemed to be very different amounts people use.

研究过程中，我发人们使用的量差异很大。

Now Fries has remarked in regard to plants, and Westwood in regard to insects, that in large genera the amount of difference between the species is often exceedingly small.

莱斯就植物和韦斯特伍德就昆虫发表了评论， 大属中，物种之间的差异量往往非常小。

But do you think there's a qualitative difference between what was happening, for example, 40 years ago and what was happening now, and a quantitative difference?

但你认为40年前发生的事和发生的事之间，否存质的差异，以及量的差异？

For this data point, the amount of variation due to the difference between the means is going to be 4 minus 4 squared.

对于这个数据点，由于均值之间的差异导致的变异量将4减去4的平方。

We first uncovered this surprising relationship while studying differences in the amount of mental effort people used to complete memory tasks.

我们首先发了这种令人惊讶的关系， 同时研究了人们用于完成记忆任务的脑力劳动量的差异。

The relative amount of these two kinds of water varies greatly from one kind of rock or sediment to another, even though their porosities may be the same.

尽管孔隙率可能相同，但从一种岩石或沉积物到另一种岩石或沉积物，这两种水的相对量差异很大。

Hence, without rejecting the consideration of the present existence of intermediate gradations between any two forms, we shall be led to weigh more carefully and to value higher the actual amount of difference between them.

因此，不拒绝考虑任何两种形式之间目前存的中间等级的情况下，我们将被引导更仔细地权衡并更重视它们之间的实际差异量。