伸张 (shēn zhāng): to uphold; to promote

That lawyer specifically serves poor people who can't afford lawsuits, seeking justice on their behalf.

The villagers' land was forcibly taken by a developer, so they decided to unite and petition to uphold their rights.

After the media exposed this wrongful case, people from all sectors called for justice to be done for the victim.

He argued forcefully in court, not only for himself but also to uphold justice for all his discriminated colleagues.

The international organization issued a statement demanding that the government thoroughly investigate the matter and seek justice for the victims.