The explosion in the mine was triggered off by a careless miner who lit a match looking for his gas light.

矿井的爆炸是一个大意的矿工点着火柴寻找煤气灯而引发的。

youdao

The explosion in the mine was triggered off by a careless miner who lit a match looking for his gas light.

矿井的爆炸是一个大意的矿工点着火柴寻找煤气灯而引发的。

youdao