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Quinine is an effectual preventive for malaria.是什么意思？

Quinine is an effectual preventive for malaria.

奎宁是有效的疟疾预防药.

相关词汇
quinine is an effectual preventive for malaria

quinine

n. 奎宁，金鸡纳碱；
例句
Meanwhile it contents quinine acid which can cure gallstone diseases.
同时含有奎宁酸,能防治胆结石症.

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。

an

art. 一（在元音字母前代替不定代词a），一任一某一，一个；
例句
He started eating an apple...
他开始吃苹果。

effectual

adj. 奏效的，收效的，行之有效；
例句
This is the only effectual way to secure our present and future happiness.
这是确保我们现在及以后都会幸福的唯一有效途径。

preventive

--
例句
Sulfur recycle catalyst activeness decline reason and its preventive measures are analyzed.
摘要分析了硫磺回收催化剂活性衰退的原因及防止措施.

for

prep. 为，为了，倾向于，关于，当作；conj. 因为，由于；
例句
I've come looking for a bit of advice.
我特来讨教。

malaria

n. <医>疟疾，瘴气，瘴疠，痁；
例句
...diseases like malaria that have been banished for centuries.
已经被根除数世纪之久的疟疾之类的疾病
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
The case shown in Figure 56 corresponds to a dextral horizontal displacement a vertical fault surface.
肉眼观察表明:在端节点处的系梁和横梁上翼缘之间产生一种沿桥梁纵向的水平位移.
It is possible to harness the versatile chemical properties of cyanogen azide.
氰化叠氮的灵活多变的化学性质是可控制的.
Civil war and famine sent the nation plunging into anarchy.
内战和饥荒使该国陷入了无政府状态。
We'll manage somehow, you and me. I know we will...
我和你，我们总能应付过去的。我知道我们会的。
Disclaimer : We do our best to insure accuracy on our listings.
Disclaimer: 我们尽我们的最好以确保我们的列表上的准确性.
Streptomyces acidophilus is one of the glucose isomerase producing strains.
嗜酸链霉菌是葡萄糖异构酶的产生菌之一,具有良好生产潜力.
She was in rather a bad film about the Mau Mau...
她出演了一部关于茅茅运动（20世纪50年代肯尼亚基库尤人反抗英国殖民者的民族主义运动）的烂片。
The judge's conclusion was plainly wrong...
法官的结论明摆着是错的。
...the union's emphasis on industrial democracy.
该工会对工业民主的强调
Townsfolk , too, were the first to feel new currents of European thought.
最先接触到欧洲新思潮的, 也是城里的人.