...the duly elected president of the country.是什么意思？

...the duly elected president of the country.

正式当选的国家总统

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

duly

adv. 及时，按时，适当地，充分地；

例句
It was the beginning of the end and Watson duly went on to win his fourth Open Golf Championship...
这是一场胜负已定的比赛，沃森不负众望赢得了他第四次高尔夫公开赛的冠军。

elected

v. （进行）选举( elect的过去式和过去分词 )，推举，选择，决定（做某事）；

例句
Bickerstaffe looks assured of being elected general secretary.
比克斯塔夫看上去对于当选总书记志在必得。

president

n. 校长，总统，总裁，董事长；

例句
The President described the killings as an abominable crime...
总统称这些血案为令人发指的罪行。

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。

country

n. 国家，国民，乡下，地区；

例句
The country was on the brink of an abyss.
国家岌岌可危。