in all seriousness very seriously
...mportance,seriousness or influence重要性、严重性或影响力(的程度) In all seriousness very seriously;not as a joke极严肃、庄重、严重或认真;并非玩笑 based on the degree of seriousness of the disease根据病势的轻重程度 ..
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in all seriousness very seriously
非常严肃地，非常严肃地
以上为机器翻译结果，长、整句建议使用 人工翻译 。