n.仲裁人；主宰者
Experiment is the final arbiter in science. 实验是科学的最后仲裁者。
The only arbiter of good taste in wine is you. 只有你才是葡萄酒口味好与坏的决定者。
she was the final arbiter on all matters of fashion. 她是流行款式的最终主宰者。
