guò / qù / xǔ / duō / nián / qīng / rén / yìng / mù / rù / wǔ / xī / wàng / bǎo / wèi / zì / jǐ / de / guó / jiā过去,许多年轻人应募入伍,希望保卫自己的国家。In the past, many young people answered the call to join the army, hoping to defend their country.