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unproven
01
not proved
例子
The herbal remedy was touted as a panacea, but its effectiveness was still unproven.
They took a long chance by investing in an unproven technology.
Betting on the unproven player to win the championship was a risky gamble that thrilled the fans when he succeeded.
The decision to gamble on hiring an unproven candidate paid off for the company.
He expressed reservations about investing in the startup due to its unproven track record.
