no bottom found

例句：

1. 1.I searched for the bottom of the ocean, but it was nowhere to be found.
   我寻找过海洋的底部，但找不到。
2. 2. The boat sank without a trace, leaving no bottom found.
   船沉没了，没有任何痕迹留下。
3. 3. The search party had scoured every corner, but there was no bottom found.
   搜索队已经搜查了每一个角落，但没有找到任何东西。