6450.aluminum(名)铝
不可数
Aluminum is made from bauxite.
铝是从铝土矿中提炼出的。

6451.ambassador(名)大使
An ambassador lives and works in an embassy.
大使在大使馆中居住及工作。

6452.ambiguity(名)模棱两可的话
She is quick to notice the ambiguity in the article.
她很快就察觉出了文中的那些模棱两可的意思。

6453.ambiguous(形)含糊不清的
Do you understand why the U.S. has to take such an ambiguous policy?
您是否理解为什么美国要在这个问题上抱持这样一种模糊的立场？

6454.ambition(名)追求的目标
It has always been her ambition to travel the world.
她一心想要环游世界。

6455.ambitious(形)野心勃勃的
I'm not particularly ambitious on the other hand. I'm content with my life the way it is．
我并不是特别有野心，而是满足于现状。

6456.ambulance(名)救护车
They helped her into ambulance．
他们扶她上救护车。

6457.ambush(名)伏击
He was killed in an enemy ambush．
他在敌人的一次伏击中丧生。

6458.amenable(形)顺从的
I'm amenable to any suggestions you may have．
你有任何建议，我都乐意听。

6459.amend(动)修正
同义词correct
The teacher advised him to amend his way of living．
老师劝他改变生活方式。

6460.amendmengt(名)修正案
The discussion on the to the amendmengt to the tax law passed off without a hitch.
有关修改税法的讨论顺利地结束了。

6461.amends(名)补偿、赔偿
惯用复数
I must make amends for my fault.
我必须弥补我的过失。

6462.amid(介)在……之中
Amid warm applause the honored guests mounted the rostrum.
在热烈的掌声中贵宾们登上了主席台。

6463.ammunition(名)弹药
The troops surrendered because they had run out of ammunition.
军队用完了弹药，所以投降了。

6464.amnesty(名)特赦
The government has annaunced an amnesty for all political prisoners．
政府宣布对所有政治犯予以特赦。

6465.amusement(名)娱乐
Much to the pupil's amusement the teacher fell off his chair.
老师从椅子上掉下来，学生们觉得很好笑。

6466.amusing(形)引人发笑的
He's a very amusing person and he makes me laugh a lot.
他很有引人发笑的本领，使我笑个不停。

6467.analects(名)论集、文选
惯用复数
There are some reasonable suggastions in the analects．
这本文选里有些适当的启发。

6468.analogy(名)类比
You could make an analogy between the humen body and a car engine．
你可以将人的身体和汽车发动机作娄比。

6469.analysis(名)分析
Some samples of the water were sent to a laboratory for analysis．
一些水的样品已经送到实验室去分析。

6470.analyst(名)分析者
Most political analyst find the First Lady is something of a cipher．
很多分析家认为第一夫人简直就是一个难解之谜。

6471.analyze(动)分析
The water samples are now being analyze in a laboratory.
这些水的样品目前正在实验室中分析。

6472.anatomy(名)身体构造
He is wounded in a vital part of his anatomy.
他身体的要害部分受了伤。

6473.ancestral(形)祖先的
Southeast Asian jungle fowls are cansidered ancestral to domestic fowls.
东南亚原鸡，被认为是家禽的祖先。

6474.ancestry(名)祖先；血统
He has lrish ancestry．
他有爱尔兰血统。

6475.anchor(动)抛锚、停泊
The boats anchor off Boston．
那艘船在波士顿港外停泊。

6476.anchorman(名)主持人
It is not easy to get a foothold as an anchorman．
一个电视节目主持人要站住脚可不容易。

6477.ancient(形)古代的
反义词modern
Ancient Cultures in Polynesia is very mysteriaus.
波利尼西亚古代文化是很神秘的。

6478.anecdote(名)秩事
The newspaper's "monster shark" story was based on anecdote.
报纸关于鲨鱼精的报导属于轶事。

6479.angle(名)角度
Viewed from this angle,the building looks bigger than it really is.
从这个角度看，那栋建筑物要比实际的大。

6480.angler(名)钓鱼者
Frankly speaking, Andy is an angler theoretically than practically.
老实说，安迪是个理论胜于实际的垂钓者。

6481.angular(形)有角的
A telescope is equipped to measure small angular distances between celestial bodies.
量日仪是一种望远镜，用以测量天体之间微小的角距离。

6482.announcement(名)宣布
Ladies and gentlemen, l'd like to make an announcement.
女士们，先生们，我要宣布一则消息。