insulation

n. /ˌɪnsəˈleɪʃn/ B2

隔热；隔音；绝缘

Material used to prevent heat, sound, or electricity from passing through.

仙境例句

The gardeners' little house had straw in its walls for insulation, so it stayed warm in winter.

园丁小屋的墙里塞了稻草来隔热，所以冬天也很暖和。