The researchers rated the photos of the subjects on a scale of two to ten.
研究人员对照片上的笑容按2-10分打分。
The retinopathy end point was a progression on a retinopathy severity scale of two steps or more.
视网膜病变终点则是2步或多步视网膜病变严重程度量表的进展变化。
The researchers rated the photos of the subjects on a scale of two to ten. They also asked their volunteers various questions, including whether they had ever been divorced.
研究者把受试验者的照片分为2到10九个等级，并且向志愿者们提问各种问题，包括他们之前是否离过婚。
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