flatter oneself; lay claim to; set up for

1. 諒他不會自以為懂得什麼音樂吧！
   Surely he doesn't pretend to any understanding of music!
2. 他自以為他說法語的腔調(diào)很完美。
   He flattered himself that he spoke French with a perfect accent.
3. 他自以為是個人物，其實他算不了什么。
   He thinks himself to be somebody, while actually he is nobody.
4. 你現(xiàn)在還自以為是幽默大師嗎？
   Are you still setting up for a humourist now?
5. 他的近作粗制濫造。他似乎自以為是名作家便可免遭物議！
   His latest book is rubbish. He seems to think that because he's a famous author he can get away with murder!

自的英語翻譯：

以為的英語翻譯：