After watching snakes wriggle up rough fabric surfaces or (less successfully) smooth surfaces, scientists from New York University and elsewhere say the secret is in the scales.
在观察蛇在粗糙面表面和光滑表面的爬行之后，纽约大学及另外一些科学家表示蛇爬行的秘密在于它的鳞片。
The mirrors have a smooth front and an open honeycomb matrix in back, making them much lighter than other mirrors and less prone to gravitational distortion.
镜片的正面是光滑的，反面是矩阵机构的蜂窝，因此比其他类型的镜片更轻，更不容受引力畸变影响。
When a product says it can "smooth away the appearance of lines and wrinkles", does it smooth them away - or just make them less obvious?
当一种产品声称它能“消除皱纹”，是把皱纹消除了——还是仅仅使皱纹较不明显呢？
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