To view this video please enable JavaScript, and consider upgrading to the latest web browser
Impossible Engineering - Season 10 Episode 3
Nchịkọta: The deepest-diving submarine is a monumental feat of engineering.
Naanị ndị otu nwere ike ịmegharị ma ọ bụ budata ya n'ọbá akwụkwọ na vidio anyị