Mariana Trench
/mˌalpˈɪɡhiən ˈtjuːbjuːl/
n
中文：马里亚纳海沟
Meaning：Cavity located near the Mariana Islands, where the Pacific Plate and the Philippine Plate converge; it is the world’s deepest trench (about 11,000 meters).
中文：马里亚纳海沟