unsealed cracks的意思

未密封裂縫

sand cracks───n.（馬）裂蹄

canceled checks───取消的支票

inside tracks───內圈；內圈跑道；有利地位

lead tracks───引導軌跡

sand crack───n.（馬）裂蹄

sandcracks───砂質裂縫

sea wracks───海藻；被浪沖上岸邊的海草

sealed beams───密封梁

sealed books───n.未知之事；被封的書

Back in the days when energy was cheap, home builders didn't worry much about unsealed cracks.───在能源還是很便宜的時候，房屋的建造者并不是很擔心不密封的縫隙。