8474.aquaculture(名)水栽法、溶液培养
不可数
Agricultural restructuring will continue, and animal husbandry and aquaculture will be developed vigorously.
农业改革将会持续进行，并积极发展畜牧业和水产养殖业。

8475.arable(形)适于耕种的、可开垦的
There is not much arable land on the side of a rocky mountain.
在多岩石的山坡上没有多少可耕之地。

8476.arch(名)拱门
Marble Arch is a famous London landmark.
大理石拱门是伦敦著名的地标。

8477.archetypal(形)原形的、典型的
He lived an archelypal rock star's lifestyle．
他过着典型的摇滚明星的生活方式。

8478.archipelago(名)群岛；多岛的海
We can't be an extension of India, and the West,nor the Malay Archipelago.
我们不能成为印度、西方国家或者马来群岛的延伸部分。

8479.architect(名)建筑师、设计师
The archilect diagramed the floor plan to show how he will divide the office space.
建筑师画了楼面的平面图以表示他将如何划分办公场地。

8480.archive(名)档案；资料库
They watched an interestrng old newsreel from the BBC archives．
他们看了一段收藏于BBC资料库里有趣而古老的新闻片。

8481.arrogant(形)傲慢的、自大的
同义词haughty
I hate to rub shoulders with such arrogant people.
我讨厌和这些狂妄自大的人来往。

8482.arterial(形)干线的；动脉的
Arterial disease and chronic high blood pressure are the primary symptom of an overnervous mood.
动脉症、慢性高血压是情绪过度紧张最基本的症状。

8483.artery(名)动脉；干线
A thin,hollow catheter was carefully introduced into the patient's artery.
一个空细的导管小心地扎进了病人的动脉里。

8484.arthritis(名)关节炎
不可数
I don't get about much since my arthritis got worse.
自从我的关节娄更加严重以来，我不太敢到处走动。

8485.articulate(形)善于表达的、口才好的；表达得清楚有力的
Mary is the most articticulate one of her sisters.
玛丽是姐妹中最会说话的。

8486.artifact(名)手工艺品；有史学价值的武器、工具等
No physical artifact from the first century related to Jesus has been discovered and verified.
在这之前，从来没有发现任何从第一世纪存留下来与耶稣存在有关的物品。

8487.artificial(形)人工的、人造的
Artificial heating hastens the growth of plants.
人工加热会加快植物的生长。

8488.ascend(动)登高、上升
同义词climb
The plane ascended higher and higher.
飞机越飞越高。

8489.assassinate(动)暗杀、行刺
A plot to assassinate the President is uncovered by government agent.
刺杀总统的阴谋被政府特勤人员发现了。

8490.assemble(动)装配；组合
He spent hours trying to assemble his new bookshelves．
组装新书架花了他很长的时间。

8491.assembly(名)集会；立法机构
不可数
The assembly adjourned sine die.
此集会无限期延期。

8492.assartive(形)武断的、坚定自信的
He is very assertive, always insisting on his own rights and opinions．
他是个固执的孩子，总是坚持自己的权力和主张。

8493.asset(名)财产、资产
同义词wealth
Important assets of Hong Kong have long been the human resources.
人力资源向来是香港宝贵的资产。

8494.assignment(名)任务、工作
He overextended himself when he acceptd an additional assigment．
接到额外的任务时，他过度紧张。

8495.assume(动)假定；僭越；就任
Scientists aszume there is no life on Mars．
科学家们假定火星上没有生命存在。

8496.assure(动)向……保证，担保
The success of the new product assured the survival of the company.
新产品的成功确保了那家公司能够生存下去口

8497.asthrm(名)气喘病、哮喘
不可数
There is no evidence that outdoor air pollution is an initiating cause of asthma.
没有明显证据显示室外空气污染是哮喘病的最初起因。

8498.astute(形)精明的、机敏的
同义词canny
He is a very astute merchant and it's impassible for him to accept to bid first.
他是个非常精明的商人，不可能接受第一个出价。

8499.athlete(名)运动员、体育家
The athlete's endurance is really extraordinary.
那个运动员的耐力的确异乎寻常。

8500.attachment(名)附件；情感
I suggest we sign the original of the contract with the attachment.
我建议合约正本与附件一起签字。

8501.attain(动)达到、获得
同义词achieve,gain
I'm determined to attain my purpose at any cost.
我决定不惜一切代价达到目的。

8502.attempt(动)试图、企图
后接不定词to
They attempted to finish the task before May.
他们试图在五月以前完成这项任务。

8503.attentive(形)注意的；体贴的
The hotel staff were very attentive to our needs.
那家饭店的职员对我们的需求考虑得很周到。