| 例句 |
Wood is an excellent insulator.木材是很好的绝缘体。Porcelain is an effective insulator.瓷是一种有效的绝缘体。Fat is an excellent insulator against the cold.脂肪是极好的抵御寒冷的绝热体。Polyurethane foam is a highly efficient insulator.聚氨酯泡沫塑料是一种很好的绝缘材料。Metal is not a good insulator.金属不是好的绝缘体。 |