自命

zì mìng qīng gāo

自命清高

claim to keep aloof from politics and material pursuits

zì mìng bù fán

自命不凡

be self-important

zì mìng cōng huì

自命聪慧

consider oneself smart

zì mìng lì shǐ xué jiā

自命历史学家

consider oneself a historian

zhè biǎo míng tā zì mìng wéi yǔ zhòu jūn wáng

这表明他自命为宇宙君王。

This signified his claim to be a universal monarch.

tā shì zì mìng wéi zhuān jiā de rén

他是自命为专家的人。

He's a self-appointed expert.