Visual Training
The squad(班，小隊) were having "visual training". One smart recruit(新兵，招募) was asked by the officer to count how many men composed a digging party in a distant field. The party was so faraway(遙遠的，恍惚的.) that the men appeared as mere dots, but unhesitatingly(迅速地) the recruit replied：
"Sixteen men and a sergeant(中士，軍士) , sir."
"Right, but how do you know there's a sergeant there?"
"He's not doing any digging, sir."
視力訓練
班裏正在進行“視力訓練”。一個聰明伶俐的新兵被班長叫出來數遠處曠野上採掘隊的人數。採掘隊在很遠的地方，那些人看起來只是一些小點兒。但是這個新兵毫不猶豫地回答。
“十六個兵外加一箇中士，長官。”
“正確，可是你怎麼知道那兒有一箇中士?”
“他不幹活，長官。”