| 例句 |
It can help to select sweaters made out of materials that won’t ravel.它有助于挑选出不打结材质的毛衣。The substance conducts electricity more efficiently at raised temperatures.这种材质温度越高导电性越强。These shoes have leather uppers and synthetic soles.这些鞋子的鞋帮是皮质的，鞋底是合成材质的。The stool comes in several sizes in walnut or mahogany.凳子有几种尺寸，材质分胡桃木和红木两种。 |