funny@lemmus.org to Ask Lemmy@lemmy.world · 1 年前Why is such a tunnel needed?media.mas.toimagemessage-square130fedilinkarrow-up1766arrow-down146file-text
arrow-up1720arrow-down1imageWhy is such a tunnel needed?media.mas.tofunny@lemmus.org to Ask Lemmy@lemmy.world · 1 年前message-square130fedilinkfile-text
I found such a photo on the Internet and became interested in what function such a structure could perform.
That’s the one! That’s the one!