" But this is unproven so far."

“但到目前为止，这还没有得到证。”

There's acupuncture... - Those are all unproven.

还有针灸 -那些都是没有理论依据。

Many feel the technology is too new and unproven.

很多人觉得这种新科技太新了且没有被证明。

Some were passed down for generations and are still unproven.

有些是祖祖辈辈口口相传，尚未经证。

" This is a very costly proposal for an unproven program."

华盛顿特区财政政策研究所(dc Fiscal Policy Institute)所长埃里卡·威廉姆斯(Erica Williams)表示：“如果开发商认为有利可图，即便没有激励，也会这么做。”“对于一个未经证项目来说，这是一个非常昂贵提议。”

The reasons for the decreased longevity in the North remain unproven.

北方造成寿命下降原因目前尚不清楚。

But another is that the brain-stretching potential of edtech has remained unproven.

但还有一个原因是教育技术提升才智潜力尚未得到证。

Before Hubble, black holes were merely a concept, an unproven part of astronomical lore.

在有哈勃之前，黑洞仅仅是理论上概念，是一项未经证天文知识。

Lula blamed Bolsonaro for inciting his supporters with unproven claims about possible election cheating.

卢拉指责博索纳罗利用未经证有关他可能在选举中作弊说法煽动他支持者。

They have commented on two unproven case reports from medical publications released many years apart.

他们对相隔多年发布医学出版物中两份未经证病例报告发表了评论。

This is a relationship with language called referential understanding that has been unproven in dogs.

这种与语言关系被称为“指代理解”，在狗身上尚未得到证。

Mr. Trump has long touted the anti-malaria medication's potential, even though its effectiveness is unproven.

特朗普一直鼓吹羟化氯喹潜力，虽然其疗效尚未经证。

The government allowed its limited use for COVID-19 patients despite it remaining unproven as a treatment.

法国政府允许该药物在新冠肺炎患者中有限地使用，尽管它仍未被证明是一种治疗方法。

Unproven claims of a link have led 11 European countries to suspend use of the vaccine.

疫苗与血栓之间存在未经证关系已经导致11个欧洲国家暂停使用该疫苗。

Mr Trump had urged his supporters to march on congress repeating unproven allegations of electoral fraud.

特朗普敦促他支持者前往国会游行，重申未经证选举欺诈指控。

It is unproven whether these new products can ever be as lucrative as Facebook's core offerings.

新产品是否会像脸书核心产品一样盈利还未印证。

Huawei says the law punishes the company for unproven accusations, and would harm its future earnings.

华为称，这项法律以莫须有罪名为名惩罚华为，会影响其未来收益。

His legal counsel is also heard challenging Mr. Trump on a slew of unproven allegations about electoral fraud.

他法律顾问还就一系列未经证关于选举舞弊指控对特朗普提出了质疑。

A lot of these claims are unproven, but people who use CBD are sold on its positive effects.

其中许多说法都未经证，但使用大麻二醇人相信它积极作用。

He faced criticism for challenging the 2020 election results last night in Congress over unproven allegations of voter fraud.

他因昨晚在国会就未经证选民舞弊指控挑战2020年选举结果而受到批评。