征召入伍

例句：

1. 1.He was enlisted in the army at age 18.
   他在18岁那年应征入伍。
2. 2.The soldier was enlisted for three years.
   这名士兵应征入伍三年。
3. 3. She decided to enlist in the military after her father's death.
   在她父亲去世后，她决定应征入伍。