他刚才说的两句话完全自相矛盾,大家都听糊涂了。Tā gāngcái shuō de liǎng jù huà wánquán zìxiāngmáodùn, dàjiā dōu tīng hútu le.The two things he just said completely contradict each other, and everyone is confused.
你的回答前后自相矛盾,请再解释一遍。Nǐ de huídá qiánhòu zìxiāngmáodùn, qǐng zài jiěshì yí biàn.Your answer contradicts itself; please explain it once more.
这份计划目标和预算自相矛盾,需要重新修改。Zhè fèn jìhuà mùbiāo hé yùsuàn zìxiāngmáodùn, xūyào chóngxīn xiūgǎi.In this plan the goals and the budget contradict each other and need to be revised.