coma
noun [ C ] uk/ˈkəʊ.mə/ us/ˈkoʊ.mə/
昏迷（状态）
a state in which a person is unconscious and cannot be woken, caused by damage to the brain after an accident or illness
He's been in a coma for the past six weeks. 在过去的6个星期里，他一直昏迷不醒。
She went into a deep coma after taking an overdose of sleeping pills. 她服用过量安眠药后，陷入了深度昏迷。