bafflestone

例句：

1. 1. The road was blocked by alarge boulder.
   路被一块大石头堵住了。
2. 2. The construction crew had toclear the blockage before they could continuework.
   施工队不得不清除阻塞才能继续工作。
3. 3. The engineer found a bafflestonethat would solve the problem.
   工程师找到了一个可以解决问题的障碍石。