He had the long sleeves of his white shirt pushed up to his elbows, and his forearm was surprisingly hard and muscular beneath his light skin.
他的白衬衣的长袖管挽到了手肘以上，他的小臂结实得惊人，雪白的肌肤下全是肌肉。
2
The skin-prick test: a drop of a solution containing the suspected allergen is placed on the skinof the subject's forearm, which is then pricked with a needle.
皮肤点刺试验：在受试者前臂皮肤上滴上一滴含有疑似过敏原的溶液，然后用针刺。
3
The researchers performed the procedure on sun-damaged forearmskinof the 25 volunteers and took tissue samples to examine the changes in the skin.