使者 (shǐ zhě): emissary; envoy

In ancient times, China often sent emissaries to the countries of the Western Regions, bringing silk and porcelain, and bringing back grapes and walnuts.

This emissary risked his life crossing the desert and finally delivered the king's handwritten letter to the neighboring monarch.

In the UN peace talks, he served as a special emissary, shuttling messages between the two sides and working to bring about a ceasefire.

On the festival day, the villagers put on traditional costumes, played ancient emissaries, and reenacted the ceremony of paying tribute to the emperor.

As times have developed, diplomatic emissaries no longer merely deliver oral messages; they must also possess negotiation, language, and cross-cultural communication skills.