It is a indubitable fact that the deterioration of soil environment in loess plateau is caused by the long — standing destruction of vegetation and the serious erosion of soil and water.(由于長期的植被破壞和嚴重的水土流失黃土高原土壤環境的惡化是無容置疑的事實。)

The growth of the whole market is indubitable as expectancy.(整個市場的成長不如預期是無可置疑的。)

It is not good either to forget the questions that philosophy asks, or to persuade ourselves that we have found indubitable answers to them.(無論是想把哲學所提出的這些問題忘卻，還是自稱我們已經找到了這些問題的確鑿無疑的答案，都是無益的事。)

The indubitable evidence we produced bore down our opponents in the debate.(我們在辯論中提出的不容置疑的證據，擊敗了對方。)

He is the music talented person, this is indubitable.(他是個音樂才子，這是無可置疑的。)

The indubitable decadence of the professional fine art tradition.(藝術職業傳統的顯著頹敗。)

The indubitable fact that our perception of material objects is fallible does not entail that it is inferential .(我們對于物質事物的知覺難免有錯這一不容置疑的事實并不導出我們的知覺是推論出來的。)

The housing mortgage loan is growing very fast and the future of the loan market is indubitable in china.(我國住房抵押貸款增長非常迅速，住房抵押貸款市場的發展潛力是毋庸置疑的。)

His brilliance renders this film an indubitable classic.(他的出色表現讓這部電影成為了毋庸置疑的經典。)

Rule two-we should attend only to those objects of which our minds seem capable of having certain and indubitable cognition.(規則二：真正要關心的對象是那些我們的天賦能夠獲得確定無疑的知識的對象。)