This personal submarine will dive deeper than any commercial subs out there currently being designed to dive up to a half mile down.

这艘个人的潜艇将比现在市面上其他可以潜到半英里以下的商业潜艇潜的深。

youdao

Last night I walked along the promenade beside the commercial port, from where tugboats packed with weapons set off to resupply forces inside Misrata, and where a rusting submarine leans against the harbour wall.

BBC: The festive gunfire of Benghazi