特派员

例句：

1. 1. He was appointed as the special envoy to negotiate with the foreign government.
   他被任命作为特使，与外国政府谈判。
2. 2. The company sent a special envoy to meet with the local authorities.
   该公司派遣了一位特使与当地当局会面。
3. 3. The special envoy was tasked with negotiating a peace treaty between the two countries.
   这位特使被指派负责在两国之间谈判和平条约。