率先 (shuài xiān): to take the lead

When he saw an elderly person get on the bus, he was the first to stand up and offer his seat; other passengers also got up one after another.

When the meeting discussion reached a deadlock, the manager was the first to propose a compromise, and only then did everyone start discussing again.

After the company announced layoffs, he was the first to hand in his resignation letter, saying he didn't want to wait any longer.

During the environmental campaign, the students took the lead in picking up trash and handing out flyers, which motivated the whole community.

In the football match, the captain was the first to score a goal, which greatly boosted the team's morale.