名词
中文翻译：皮肤线
同义词：
['skin boundary', 'skin margin', 'skin contour']
例句：
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1. The artist carefully drew the skin line on the canvas.
艺术家在画布上仔细地勾勒出皮肤线条。
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2. The doctor marked the skin line with a pen for stitches.
医生用笔在皮肤上标记了缝合线。
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3. The model's skin line was perfectly smooth and even.
模特的皮肤线条完美无瑕，均匀一致。