surrogate
核心词议：

速记方法
速记技巧 词源词根法 来自拉丁语surrogare，替代，代替，来自sur-，在下，向上，-rog，要求，词源同arrogant，prorogue.引申词义代孕的。

知识扩展
词组短语 surrogate mother n.代孕母亲；替身母亲；

中文词源： surrogate 替代的，代孕的 来自拉丁语 surrogare,替代，代替，来自 sur-,在下，向上，-rog,要求，词源同 arrogant,prorogue. 引申词义代孕的。 surrogate
精选例句

常见考点例句：

Surrogate exchange rates have their problems too .

替代汇率也有自身的问题。

The work of a surrogate is to give them the essential tools for building healthy and loving relationships .

性伴侣替代师的工作是授与他们建立健康和充满爱的关系的必要方法。

White was determined to make the dollar the sole international currency ; legally a surrogate for gold itself .

怀特决心让美元成为唯一的国际货币，即黄金的合法替代品。

Many medicines are approved on the basis of what scientists call surrogate endpoints , like proof that they lower cholesterol , rather than because they have been shown to reduce the risk of death or disease .

就像降胆固醇药那样，许多药品通过审批，只是采用了科学家称为替代指标的东西作为依据，而不是因为它们被证实降低了疾病或死亡的风险。

Since 1992 , the fda has granted accelerated approval to drugs based on so-called surrogate endpoints , or initial measures that suggest the drug will make real improvements in patient health .

自从1992年起，fda认为对那些基于所谓替代终点、或是被认为药物将使病人健康得到改善的药品实行加快审批是理所应当的。