致敬，体力劳动者。

To pay tribute to the manual laborers.

Remain true to our original aspiration and keep our mission firmly in mind.

不忘初心，牢记使命。

Our purpose in life is to serve the people.

我们生活的目的是为人民服务。

Serve the people all one's life long

一辈子为人民服务

My aim in life is to serve the people. 

我的生活目的是为人民服务。

Its obligation must be to serve the people, not rule over them. 

它的责任必须确保政府是服务于我们而非统治我们。

We should serve the people as /so long as we live. 

只要我们活着,就应为人民服务。

We must study hard before we can effectively serve the people. 

我们只有努力学习,才能有效地为人民服务。

I'll serve the people in the following days of my life.

我将利用我的余生为人民服务。

I want to continue serving the people.

我想继续为人民服务。

He taught us to serve the people whole - heartedly; he practised it himself. 

他教导我们全心全意为人民服务, 他自己就是这样做的。