ocean floor 
Meeresboden 
fondale marino 
fonds marins 
fondo marino ocean floor 112 海底 [-] hǎidǐ (sea-bottom) ocean floor: 沉入~ sink to the bottom of the ocean || ~火山 underwater volcano || ~世界 underwater world '| Goethebuch | Vietnamese |
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| Oxford3000Ten |
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| GLOSSIKA |
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