“被发现”的英语可以翻译为：come to light ...

他们在小舢板上漂浮了3个小时后才被发现。They were spotted after three hours adrift in a dinghy.一位富商被发现死于重物连续猛击。A wealthy businessman has been found bludgeoned to death.虽经长期寻找，但该遗址直到最近才被发现。This site remained undiscovered, though long sought,...