马里亚纳海沟 (馬里亞納海溝) mǎlǐ yà nà hǎigōu

mǎlǐ yà nà hǎigōu proper noun Mariana Trench (or Marianas Trench)
Domain: Modern Chinese 现代汉语
Notes: (CC-CEDICT '馬里亞納海溝')