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原来是燃油炉出现了故障,它不仅向外冒出了滚滚浓烟,而且还释放出致命的一氧化碳。
The problem was a malfunctioning furnace that not only spewed smoke, but deadly carbon monoxide.
youdao
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原来是燃油炉出现了故障,它不仅向外冒出了滚滚浓烟,而且还释放出致命的一氧化碳。
The problem was a malfunctioning furnace that not only spewed smoke, but deadly carbon monoxide.
youdao