虽然有些孩子天生耳聋，但还有许多孩子是后来失去听力的。
Although some kids are born deaf, many others lose their hearing later on.
还有一种称为“人工耳蜗”的设备，它需要被植入内耳深处，通常用于天生耳聋，或听力严重丧失的人。
A deep inner-ear hearing device called a cochlear implant typically has been used only for people who are born deaf or those with severe hearing loss.
爆炸中死去了数万人，还有更多人受伤；巽他海峡里的船员被爆炸震得耳聋。
Tens of thousands were killed and many more injured; sailors in the Sunda strait, for example, were deafened by the eruption.
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