室内一氧化碳的浓度越来越高,李探长一边咳嗽一边背过身,双手扶着手机。
shìnèi yīyǎnghuàtàn de nóngdù yuèláiyuè gāo ,Lǐ tànzhǎng yībiān késou yībiān bèiguò shēn ,shuāngshǒu fú zhe shǒujī 。
The density of carbon monoxide in the room was growing. Detective Li, coughing, turned around as he cradled his cell phone with both hands.