Dr. DeLay cautioned countries to maintain against resurgent pandemic.是什么意思？

Dr. DeLay cautioned countries to maintain against resurgent pandemic.

戴雷尔告诫各国应保持警惕,以防艾滋病的蔓延势头再度转强.

DR

abbr. (=data register) 资料暂存器，(=delivery room) 图书出纳室，产房；

例句
A Dr Matthew Owens was reported missing while on an expedition to north-eastern Turkey.
据报道，一位叫马修·欧文斯的博士在前往土耳其东北部考察的途中失踪了。

delay

n. 延迟，拖延，耽搁，被耽搁或推迟的时间；vt. 延期，推迟，耽搁；vi. 延缓，延期；

例句
How much delay should we build into the plan?
我们应该为这个计划预留多少富余的时间？

cautioned

v. 警告，提醒，劝…小心( caution的过去式和过去分词 )；

例句
Tony cautioned against misrepresenting the situation...
托尼告诫说不要歪曲形势。

countries

n. 国家( country的名词复数 )，国土，郊外，地区；

例句
The two countries signed an agreement to jointly launch satellites.
两国曾签订了联合发射人造卫星的协议。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

maintain

vt. 保持，保养，坚持，固执己见；

例句
Few people nowadays are able to maintain friendships into adulthood.
如今很少有人能将友谊维持到成年。

against

prep. 反对，对…不利，紧靠，以防；

例句
His hand brushed against hers; it could have been either accidental or deliberate.
就在有意无意间，他的手轻轻拂过她的手。

resurgent

adj. 复活的，复兴的；

例句
Dr. DeLay cautioned countries to maintain against resurgent pandemic.
戴雷尔告诫各国应保持警惕,以防艾滋病的蔓延势头再度转强.

pandemic

adj. （疾病）大流行的，普遍的，全世界的；n. （全国或全球性）流行病，大流行病；

例句
One pandemic of Spanish flu took nearly 22 million lives worldwide.
西班牙流感的大爆发夺去了全球近2,200万人的生命。