1、Cancer, unproven tumour, polypus, hard lump, cyst or excrescence of the large intestine.
癌癥(惡性腫瘤)、未經(jīng)證實(shí)為良性或惡性之腫瘤、大腸息肉、硬塊、囊腫、贅生物。

2、The risks, he said, were rubbish, unproven by science, while the potential benefits were endless.
他說(shuō)，未經(jīng)科學(xué)證實(shí)的風(fēng)險(xiǎn)不過(guò)是垃圾，而潛在的優(yōu)勢(shì)則永無(wú)止境。

3、This is particularly true with unproven new products.
對(duì)于還沒(méi)有經(jīng)過(guò)市場(chǎng)證明的新產(chǎn)品更是如此。

4、But an unproven intervention can do considerable harm.
但是，未經(jīng)證實(shí)的干預(yù)可能相當(dāng)有害。

5、He admits that this is still an unproven hypothesis, but it is one worth considering.
他承認(rèn)，這仍是一個(gè)未被證實(shí)的假設(shè)，不過(guò)，這是一個(gè)值得考慮的假設(shè)。

6、There are a lot of unproven allegations flying around.
有很多未經(jīng)證實(shí)的謠言在迅速傳播開(kāi)來(lái)。

7、The technology is unproven at this scale and would be very expensive.
何況該技術(shù)還沒(méi)有在如此規(guī)模下使用的先例，更不用說(shuō)昂貴的開(kāi)銷(xiāo)了。

8、As instructed, I cut my lifeline to the bank and leapt into unproven waters.
像指示的那樣，我把我的生命線(xiàn)系到了銀行上跳進(jìn)了這未知的領(lǐng)域里。