How deep is the Mariana Trench?

马里亚纳海沟有多深？

同一单元的其他句子

• Mount Qomolangma is the highest mountain in the world.珠穆朗玛峰是世界上最高的山。
• The Amazon River is longer than the Nile River.亚马逊河比尼罗河更长。
• Is the Sahara Desert the largest desert on Earth?撒哈拉沙漠是地球上最大的沙漠吗？
• The Pacific Ocean is deeper than the Atlantic Ocean.太平洋比大西洋更深。
• Don't climb the mountain without a guide.没有向导不要爬山。