diplomat

diplomat
/ˈdɪpləmæt; `dɪpləˌmæt/ n
1 person in the diplomatic service, eg an ambassador 外交官（如大使）; 外交家.
2 person clever at dealing with people; tactful person 通权达变的人; 有交际手腕的人; 机智练达的人.

牛津英汉双解词典