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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
As you observe, 12 celestial sphinxes appear before you, and circle the area around you.
你现在看到, 12个神圣的人面狮身像在你的面前出现, 并且围绕在你的四周.
...a dreamland of snowy moonlit peaks and twinkling lights.
月光下白雪皑皑的山顶闪闪发光，有如仙境一般
Zemel says that when calcium levels are low, the body releases a hormone that helps squeeze the most out of every available milligram of the mineral.
泽莫尔博士说,当人体中的钙含量偏低时, 身体里就会产生一种荷尔蒙,它能帮助肌体最大限度地吸收所摄入的钙.
Objective To discuss the relationship between IAA and EHT and discover its mechanism.
目的　探讨胰岛素自身抗体(IAA) 含量与原发性高血压(EHT) 的关系,揭示胰岛素抵抗(IR) 与EHT的发生机制.
Anaemia due to menorrhagia in 1 case ( 3 3 % ).
月经失血性贫血1例,占33%.
Again the purpose of this action was to curtail inflation.
此行动的目的在于抑制通货膨胀.
A little food would do us all some good...
吃点东西，对我们大家都会有好处。
She dabbed herself with scent.
她在身上擦了一点香水。
She found his story so compelling that she had forgotten to drink wine.
他的故事使她听得入神,以至她忘记喝酒了。
Opypeptide agents synthesized and excreted from immunocyte or non immune cells are called cytokines.
机体的免疫细胞和非免疫细胞合成和分泌的小分子多肽类因子统称为细胞因子.