Schließen
enable
explore
beneath
take part in
a wide variety of
depth
investigate
hazardous
submarine
(nimisõna-mis?)
submarine
(omadussõna-missugune?)
knowledge of sth
proper
constant
witness
unique
unreliable
surface
rely on sb
immediately
plumbing
feed off sth
descend
opportunity
be in store for
rapidly
realize
fluid
volcanic eruption
