n.断言；主张；论断；自信，坚定；被维护的东西

This assertion rests on a misunderstanding. 这种断言是由一种误解而来。

He attempt to rebut the assertion make by the prosecution witness. 他试图反驳原告方证人所作的断言。

Such a questionable assertion is sure to provoke criticism. 这种有问题的主张肯定会招致非议。

I shall try to justify this assertion. 我将试图证明这种看法。

He has not a vestige of evidence for this assertion. 他没有丝毫证据证明这个论断。