evaluate和estimate的区别：含义不同、词性及用法不同、强调重点不同。evaluate作为及物动词，含义为“估计”、“评价”；estimate可作名词和动词，含义为“估价”、“估计的成本”、“对数量、成本等的估计”。

evaluate作为及物动词，意为估计;评价;评估。

例句：We need to evaluate how well the policy is working.

我们需要对这一政策产生的效果作出评价。

The market situation is difficult to evaluate.

市场状况难以评价。

Evaluate this piece of furniture, please.

这件家具请你估一估价。

For each side of the subject, think carefully and evaluate it.

对于主题的每一个方面,都要仔细思考和评估。

I can't evaluate his ability without seeing his work.

我没有看到他的工作情况，无法评论他的能力。

Don't evaluate a person on the basis of appearance.

不要以相貌取人。

We evaluated a variety of different approaches to this challenge.

我们评估了解决这一问题的各类方式。

estimate可作名词和动词，意为估计;估算;估价；估价;(对数量、成本等的)估计;估计的成本。

例句：I can give you a rough estimate of the amount of wood you will need.

我可以粗略估计一下你所需要的木材量。

It is estimated (that) the project will last four years.

据估计，这项工程将持续四年。

Try to estimate how many steps it will take to get to a close object...

尽力估算一下达到一个近距离目标需要多少步。

I hadn't been far wrong in my estimate of his grandson's capabilities.

我对他孙子的能力的判断还不算太离谱。

We will send you an estimate for the work without obligation.

我们将寄上工程估算，仅供参考。