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1. Oxford Dictionary

   hydrophone

   • IPA[ˈhʌɪdrəfəʊn]

   英式

   • n.
     a microphone which detects sound waves under water.

   • noun: hydrophone, plural noun: hydrophones

2. • 更多解釋

   hydrophone

   • IPA[ˈhīdrəˌfōn]

   美式

   • n.
     a microphone which detects sound waves under water.

   Oxford American Dictionary