assessment, estimate和evaluation的区别

assessment
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n.
1. (为征税对财产所作的)估价[U]
2. 被估定的金额[C]
my tax assessment for 1994
我一九九四年的税额
3. 评价;估计[C]
He made a careful assessment of the situation.
他对形势作了细致的评估。

estimate
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vt.
1. 估计,估量[(+at)][O2][+(that)]
The police estimated the number of demonstrators at about 5,000.
警方估计示威者的人数为五千左右。
The medicare cost is estimated to be one billion dollars.
老年医疗保健费用估计为十亿美元。
2. 评价;判断
vi.
1. 估计;估价[(+for)]
I asked a contractor to estimate for the repair of the house.
我请了承包商估计修缮这幢房子的费用。
n.[C]
1. 估计;估价;估计数
The expert's estimate is that the painting is worth $3,000.
专家估计这幅画值三千元。
2. (承包人的)估价单
3. 评价;判断;看法
My estimate of the situation is not so optimistic.
我对形势的估计不那么乐观。

evaluation
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n.
1. 估价,评价;估算[C][U]
I attempted an honest evaluation of my own life.
我试图如实地评价我自己的一生。