The theory of dark matter is
unproven but widely accepted by scientists.
黑暗物质的理论尚未被证实，但被广大科学家所接受。
The efficacy of the new drug remains
unproven until it completes clinical trials.
新药的功效在完成临床试验之前是未经证实的。
His claim that he can predict earthquakes is
unproven and often dismissed as pseudoscience.
他声称能预测地震，这一说法未经证实，常被视为伪科学。
The existence of extraterrestrial life is an
unproven hypothesis, though many find it intriguing.
外星生命的存在是一个未经证实的假设，尽管许多人对此感到着迷。
The efficiency of homeopathy is
unproven by mainstream medical research.
主流医学研究尚未证实顺势疗法的有效性。
The supposed benefits of meditation for mental health are still largely
unproven.
冥想对心理健康的好处大部分仍然未经证实。
The ancient civilization on Mars is an
unproven theory popular in conspiracy circles.
火星上存在古代文明是一个在阴谋论圈子里流行的未经证实的理论。
The claim that video games cause violence in children is
unproven and controversial.
游戏导致儿童暴力的说法未经证实且颇具争议。
The healing power of crystals is an
unproven belief held by some alternative therapists.
水晶的治疗力量是一些另类疗法从业者持有的未经证实的信念。
The assertion that memory can be accurately retrieved through hypnosis is
unproven and disputed by experts.
通过催眠可以准确恢复记忆的断言未经证实，并受到专家的质疑。
Ride-hailing company Lyft's initial public offering this week will give investors the opportunity to place their bets on a company with a history of losses in an unproven sector.
Potential new investors refused to value Volvo's business using the same math as used for new EV makers, saying Volvo's transformation strategy was bold but still unproven, according to The Wall Street Journal.
GM's initial purchase of Cruise was met with skepticism over the price - a billion dollars for an unproven technology.
The CBRC, China's top banking regulator, issued the new rules forbidding commercial banks from offering entrusted loans with funds from others, bank credit, special funds created for a specific purpose, other forms of debt capital, and funds with unproven sources.
However, IPOs dominated by smaller companies here also raised concerns because many of them are unprofitable and have unproven business models, the newspaper noted.