sleeve brick

例句：

1. 1.The sleeve bricks are used to reinforce the wall.
   袖子砖用于加固墙壁。
2. 2. The bricklayers were busy laying the sleeve bricks for the new building.
   砌砖工们忙着为新建筑铺设袖子砖。
3. 3. The builders used sleeve bricks to insulate the walls during construction.
   建筑工人使用袖子砖在施工过程中隔热墙体。