Read Edit View history 大海沟 dàhǎigōu oceanic trench Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 大海沟/ 大海溝 dàhǎigōu oceanic trench marine trench 马里亚纳海沟是世界上最深的大海沟。 Edit Delete References Add reference No references for this word.