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非洲有三分之一的土地面临荒漠化的威胁。用英语怎么说？

非洲有三分之一的土地面临荒漠化的威胁。

A third of Africa is under threat of desertification.

相关词汇
third of Africa is under threat desertification

third

n. 第三，三分之一，第三档；adj. 第三的，三分之一的；
例句
A third brigade is at sea, ready for an amphibious assault.
还有一个旅已在海上待命，准备两栖进攻。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

Africa

n. 非洲；adj. 非洲的；
例句
Armed only with a BBC microphone, I travelled across South Africa meeting writers.
仅仅凭借着一支英国广播公司的话筒，我走遍了南非，会见了许多作家。

is

vt.& vi. 是（be的三单形式；n. 存在；
例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

under

prep. 在…下面，在表面之下，在…的假定表面或掩饰下，少于，小于，在…情况下；adv. 在下面，少于，在水下，在昏迷中；adj. 较低的，下面的；
例句
...efforts to acquaint the public with their rights under the new law...
为使公众熟悉新法律所赋予的权利而作出的努力

threat

n. 威胁，恐吓，凶兆；
例句
The threat is likely to remain in abeyance until next year's meeting in Reykjavik.
这一威胁很可能会一直存在下去，直至明年的雷克雅未克会议。

desertification

n. 沙漠化，沙化；
例句
The desertification of land by the current world - wide attention.
留学解答资讯网:土地的沙漠化得到了当今世界广范围的重视.
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
Heaven forbid that he should leave because of me!
但愿他不会因为我而离开！
White wines tend to gain depth of colour with age...
白葡萄酒年头愈久，颜色愈深。
A coefficient of one means the markets move perfectly in step.
系数为1表示各个市场的步调完全一致。
The inspectors watched a growing mob of demonstrators gathering.
督察们看见越来越多愤怒的示威者聚集到一起。
He had to have one leg amputated above the knee.
他的一条腿不得不从膝部以上截断。
...the dynamics of the social system...
社会体制的动态
...the French parliament...
法国议会
When you have got a handle on your anxiety you can begin to control it.
一旦了解了自己焦虑的原因，你就开始能控制它了。
Although their careers are important many said they plan to retire at 50...
虽然事业很重要，但很多人都说他们打算50岁退休。
Only a few vegetable-origin foods have such a high percentage of protein.
只有几种蔬菜食品有如此高的蛋白质含量。