hěn duō / zhì yuàn bīng / lái zì / pǔ tōng / jiā tíng / tā men / zì yuàn / cān jūn / bào guó

很多志愿兵来自普通家庭，他们自愿参军报国。

Many volunteer soldiers come from ordinary families and voluntarily join the army to serve the country.