disquisitions
n.
专题论文，专题演讲( disquisition的名词复数 );
例句:
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Faith is not built on vain disquisitions.
信仰并不奠立于那种徒劳的穷根究底.
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Faith is not built on disquisitions vain.
信仰并不奠立于那种穷根究底的徒劳.
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The P.M.'s lengthy disquisitions in Cabinet on papers which he has not read.
来自J. Colville