honest broker
noun/ˌɒnɪst ˈbrəʊkə(r)/
/ˌɑːnɪst ˈbrəʊkər/
- a person or country that tries to get other people or countries to reach an agreement or to solve a problem, without getting involved with either side
（人际或国际纠纷中的）公正调解者，调停者 Word Originlate 19th cent.: translating German ehrlicher Makler with reference to Bismarck, under whom Germany was united.