law clerk
noun [ C ] law US uk/ˈlɔː ˌklɑːk/ us/ˈlɑː ˌklɝːk/
（法庭）书记员
a person who works with a judge and helps the judge make decisions
He served as a law clerk for the chief judge of the US Court of Appeals for the District of Columbia circuit. 他为哥伦比亚特区巡回上诉庭首席法官担任书记员。