2. In this circumstance, the court acts as final
arbiter on a difficult issue .
在这种情况下,最高法院就不同问题充当最后的裁决者。
3. For years the UN has clung to its reputation as a neutral
arbiter, and managed to avoid becoming a militant target.
多年来,联合国一直以中立仲裁者的形象自居,因而成功地避免成为军事打击的目标。