证人的陈述是矛盾的。

The witness statements were ___contradictory.

所以父母需要成为好榜样，不要以与学校所教相矛盾的方式行事。

So parents need to be good role models and not behave in a ___contradictory way to what is being taught at school.

他的行为和言语常常矛盾，让人很难信任他。

His actions and words are often ___contradictory, making it hard to trust him.