Some young men enlist in the army while they still at University.

有些大学的在校生应征入伍.

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The boy could not enlist in the army because he was under age.

这男孩因为太小,不能入伍.

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Gary did not want to enlist in the army, but he felt it was his duty.

加里并不想入伍, 但他觉得这是他的义务.

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