英语语法分析

Natural fabrics like silk and wool are better insulators than synthetics.

丝绸和羊毛之类的纯天然织物比合成纤维更加保暖。

《柯林斯英汉双解大词典》

Choose those made from synthetics or a blend of synthetics and cotton.

选择由人造材料或人造材料和棉的混合物制造的那些袜子。

They have rubber synthetics that greatly enhance one's friction on the rock.

它们是由橡胶制成的，能够增强在岩石上的摩擦力。