Definition: someone who swims under water, usually with breathing equipment Level: B1
一名深海潜水员发现了一艘沉船。
A deep-sea ___diver discovered a shipwreck.
他获得了开放水域潜水员的资格。
He obtained the qualification of an open water ___diver.
潜水员穿着潜水服，戴着氧气罐。
The ___diver wore a wetsuit and oxygen tank.
