Even if they're playing, everybody has their own focus of attention. It's quite natural to have them scattered all over--it would be almost impossible to get everybody together for a group photo!
即使在玩，每個人都有自己關注的焦點，聚散之間十分自然﹘﹘你幾乎不可能把所有人湊在一起拍一張團體照！