commercial propane是什么意思 commercial propane怎么读
commercial propane的用法和样例
- We have big fuel crisis and people couldn't uses the kerosene heaters in winter and they cant use the propane gas all the time because of the big shortage and the high prices.
我们陷入了能源危机，冬天时人们不能用煤油暖气，而因为短缺和高价也不能常用丙烷气。
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