messenger
特殊用法auxiliary messenger1.■辅助悬缆线, 副悬缆线cable messenger1.■悬缆索, 电报投递员cash messenger1.■收款员crossing-the-boundary messenger1.■越界交通express messenger1.■专差interspecific chemical messenger1.■种(类)间的化学信使King's [Queen's] messenger1.■[英]送公文的人main messenger1.■主导电索second messenger1.■第二信使