在一辆密封的公交车上，如果燃气发生泄漏达到一定密度并有火花引燃就可能造成一场大火。
A gas leak aboard a sealed bus could cause a major fire if it grew dense enough and was ignited by a spark.
西班牙警察在一辆开往巴塞罗那的公交车上逮捕了一个从乘客的行李中偷窃贵重物品的人。
Police in Spain have arrested a man who stole valuables from people's luggage while they were on a bus heading for Barcelona.
西班牙警察在一辆开往巴塞罗那的公交车上逮捕了一个从乘客的行李中偷窃贵重物品的人。
Police in Spain have arrested a man who stole valuables from people's luggage while they were on a bus heading for Barcelona.
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