active service
noun /ˌæktɪv ˈsɜːvɪs/
/ˌæktɪv ˈsɜːrvɪs/
(especially British English) (also active duty especially in North American English)
[uncountable]- taking part in military action as a member of the armed forces, especially during a war
现役;(尤指)战时服役 - on active service troops on active service
现役部队
- on active service troops on active service