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，未經(jīng)科學(xué)證實(shí)的風(fēng)險(xiǎn)不過是垃圾，而潛在的優(yōu)勢則永無止境。

3、This is particularly true with unproven new products.
對于還沒有經(jīng)過市場證明的新產(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，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來。

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

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