The party’s president had become merely a figurehead.是什么意思？

The party’s president had become merely a figurehead.

该党的首脑已成了有名无实的首脑。

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。

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。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

become

vi. 变为，成为，变得，变成；vt. 适合，适宜，相称，相当，变成，发生；

例句
...abandoned buildings that become a breeding ground for crime.
沦为了犯罪温床的弃置楼群

merely

adv. 仅仅，只不过，只是，纯粹，全然；

例句
In actuality, Teddie did not have a disorder but merely a difficult temperament...
实际上，小特迪并非哪不正常，而仅仅是属于困难型气质。

figurehead

n. 挂名的首脑，傀儡，装饰船头的人像，〈谑〉嘴脸；

例句
It was an Alexandrian ship with the figurehead of the twin gods Castor and Pollux.
这船以丢斯双子为记,是在那海岛过了冬的.