点击下方单词,选择对的这个单词
1. 绝缘体;绝热体;隔音物An insulator is a material that insulates something.
1. a material such as glass or porcelain with negligible electrical or thermal conductivity
Synonym: dielectricnonconductor
多通过句子记忆单词,而不是单独死记硬背。