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1·The event was an undoubted success.

这次活动是一个无可置疑的成功。《柯林斯英汉双解大词典》

2·His sincerity is undoubted.

他的诚意是无容置疑的。《新英汉大辞典》

3·While there's an undoubted genetic basis to individual differences, it is wrong to think that socially defined groups can be genetically accounted for.

毫无疑问，个体差异有遗传基础，但认为社会定义的群体可以通过遗传解释却是错误的。

4·She has an undoubted talent as an organizer.

她的确有组织才能。《牛津词典》

5·Vertical farming is an attempt to address the undoubted problems that we face in producing enough food for a growing population.

垂直农业试图解决我们在为不断增长的人口生产足够的粮食时所面临的不容置疑的问题。

6·She is undoubted star of British ballet.

她是英国毋庸置疑的芭蕾明星。

7·Listening has an undoubted position in English learning.

听力在英语学习中的地位不容质疑。

8·His undoubted eccentricity was partly a matter of personal style.

他的怪癖确实存在，部分是个人风格问题。

9·The form and content is undoubted the two basic element of dance.

形式与内容无疑是舞蹈的两大基本要素。

10·It is undoubted that resource has the important effect on economic growth.

但是资源对经济增长的影响作用却是毋庸置疑的。