Okay, as you can see, the question is explaine clinal variation and how the examples used by the professor illustrate this concept.

的，如你所见，问题是解释梯度变，教授如何用事例来解释这个概念。

And the question is gonna say something like this: Using the main points and examples explain clinal variation.

利用中心思想和事例来解释梯度变。

Okay, now you understand that clinal variation is a gradual change in a feature across the distributional range of a species or population.

的，现在你了解到，梯度变是某个物种和族群中某个特性在不同分布范围中的逐渐变化。

As you can see, I literally just wrote down the definition of clinal variation.

如你所见，我只写下了梯度变的定义。

So both the sparrows and the elephants are great examples of clinal variation.

所麻雀和大象都是很的说明梯度变的例子。

From the reading, clinal variation is defined as two species gradually developing differently because of environmental factors.

在文章中，梯度变被描述为两个物种因为环境因素而逐渐发展得不一样。