It's not really hard. You just make your bed neat, remember to stand up straight, and always answer every question with "Yes, Drill Sergeant."

VOA: standard.other

It's very hard to see very much and you can't anywhere pretty much but straight ahead.

戴上头盔后视野很有限,基本上哪儿都看不到,只能往前看

耶鲁公开课 - 古希腊历史简介课程节选