| 词组 | sit on a volcano |
| 释义 | sit on a volcanov., informal〖非正式〗To be in a place where trouble may start or danger may come suddenly. 坐在火山口上；处境危险。◆ The policemen who patrolled the big city slum area that summer were sitting on a volcano.那年夏天在大城市贫民区巡逻的警察如同坐在火山口上。 |
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