Upon the expiration of his active service, a conscript may, according to the need of the armed forces and on a voluntary basis, extend his service.是什么意思_Upon the expiration of his active service, a conscript may, according to the need of the armed forces and on a voluntary basis, extend his service.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句