Mariana Trench
- an ocean trench to the south-east of the Mariana Islands in the western Pacific, with the greatest known ocean depth (11,034 m, 36,201 ft at the Challenger Deep)马里亚纳海沟（西太平洋马里亚纳群岛东南部世上最深的海沟）。
| 单词 | Mariana Trench |
| 释义 | Mariana Trench
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