corpsman

corps.man

n.（名词）
An enlisted person in the armed forces who has been trained to give first aid and basic medical treatment, especially in combat situations.
医务兵：在军队中注册的受过紧急援助和基本医疗救助训练的士兵，尤指在战备情况下
A member of a government-sponsored group designated as a corps:
和平部队队员：由政府资助而成立的部队：
例句：
Peace Corpsmen.
和平部队