They could be triggered by a host of factors including smoking, eating fatty, processed foods and not getting enough fresh air.

这些迹象可能由多种因素造成，包括吸烟、吃油腻的加工食品、新鲜空气不足等等。

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They could be triggered by a host of factors including smoking, eating fatty, processed foods and not getting enough fresh air.

这些迹象可能由多种因素造成，包括吸烟、吃油腻的加工食品、新鲜空气不足等等。

youdao