英语笑话:Visual training 视力训练

Visual Training The squad（班，小队） 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（遥远的，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，军士） , sir."
　　
"Right, but how do you know there's a sergeant there?"
　　
"He's not doing any digging, sir."