unproven

/ʌnˈpruːvən/ /ˌʌnˈpruːvən/

Meanings

adjective

未证实，未经证实的。

Not proved.

Examples :

"The effectiveness of that new medicine is still unproven, so doctors are hesitant to prescribe it widely. "

那种新药的疗效仍然未经证实，所以医生们都不太敢广泛地使用它。

theory science

Related Words

still noun

/stɪl/

寂静，平静。

"the still of the night"

夜的寂静

not noun

/nɒt/ /nɑt/

非，否定。

"The not of the student's attendance record meant they were absent. "

对学生出勤记录的否定意味着他们缺席了。

that noun

/ˈðæt/ /ˈd̪æt/ /ˈðɛt/

那个，那件事。

"My sister brought several books to the library, and that one is about dinosaurs. "

我姐姐带了几本书去图书馆，那本是关于恐龙的。

prescribe verb

/pɹɪˈskɹaɪb/

开（药），处方.

"The doctor prescribed aspirin."

医生开了阿司匹林（药）。

new noun

/njʉː/ /n(j)u/ /njuː/

新的事物，新东西

"Out with the old, in with the new."

旧的过去，新的到来。

medicine noun

/ˈmed(ɪ).sn̩/ /ˈmɛ.dɪ.sɪn/

药物，药品

"The medicine helped my grandmother feel better after she had the flu. "

药物让我的奶奶在感冒后感觉好多了。

the adverb

/ði/ /ˈðiː/

越...越..., 愈...愈...

"It looks weaker and weaker, the more I think about it."

越想越觉得它很无力。

hesitant adjective

/ˈhɛzɪtənt/

犹豫的，迟疑的。

"I am hesitant to recommend him as a manager because he has a short temper."

我不太愿意推荐他当经理，因为他脾气不太好。

widely adverb

/ˈwaɪdli/

广泛地，普遍地

"The new school policy was widely discussed by parents. "

新的学校政策受到了家长们的广泛讨论。

doctors noun

/ˈdɒktəz/ /ˈdɑktɚz/

医生，医师。

"If you still feel unwell tomorrow, see your doctor."

如果你明天还是觉得不舒服，就去看医生吧。

effectiveness noun

/ɪˈfɛktɪvnəs/ /əˈfɛktɪvnəs/

有效性，效力

"The effectiveness of the drug was well established."

这种药物的有效性已经得到了充分的证实。

proved verb

/ˈpɹuːvd/

校对，审阅。

"The teacher proved the student's essay before returning it, marking any grammar errors. "

老师在把学生的文章还回去之前校对了一遍，并标出了语法错误。