serve是什么意思

toserve是什么意思及用法？

to serve服务;发球;招待;服侍;侍奉例句：The economy should be organized to serve the interests of all the people 经济的组织运行应符合所有人的利益。

He said that public servants should use government to serve and not to cash in. 他说，公务员应该运用***权力为民服务，而不是从中捞取好处。

serve的可数名词意思是什么？