海恩斯说，这些专家查看了这段录像是否受到篡改以及被拍摄的人是不是演员。
He says the experts looked to see if there was any tampering of the video and whether the people who were filmed were actors.
它是关于愈合创痛的记录，没有旁白，没有生动的画面或专家意见，但却是以人类深沉的情感之诗拍摄而成的。
It is a record of recovery, without narration, graphic images or expert opinions, but shot through with the poetry of deeply felt emotions.
那时，由放射线专家拍摄的这些人的膝盖都很正常，可随着年龄的增加，很多人都患上了骨关节炎。
At the time, the knees of all the people involved had been diagnosed by expert radiologists as normal but, as those people aged, many developed osteoarthritis.
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