active service

noun

/ˌæktɪv ˈsɜːvɪs/

/ˌæktɪv ˈsɜːrvɪs/

(especially British English)

(also active duty especially in North American English)

[uncountable]

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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
Topics War and conflictc1