马里亚那海沟是地球最深的地方。
The Marianna Trench is the deepest part of the Earth's surface.
一道很深的海沟把南极洲一分为二。
海洋的最深深度是在这片海沟中测出的。
The greatest depths of the ocean are found in the ocean trenches.
马里·亚纳海沟是世界海洋中最深的地方。
The Mariana Trench is the deepest spot in the world's oceans.
因此炮弹大约要花一个小时的时间到达海沟底部。
So it took the cannonball about an hour to reach the bottom of the trench.
因此炮弹大约要花一个小时的时间到达海沟底部。
So it took the cannonball about an hour to reach the bottom of the trench.
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