be dead to the worldUNCONSCIOUSSLEEPto be very deeply asleep or unconscious 熟睡;失去知觉 Better leave Craig – he’s dead to the world. 最好别打扰克雷格——他睡得正熟。
be dead to the world• Anyway Amanda was dead to the world.• I'm sorry I didn't hear the phone -- I must have been dead to the world this morning.
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