Meaning of jìng:
竟
unexpectedly; actually; to go so far as to; indeed
Tā jìngrán yíngdéle bǐsài!
他竟然赢得了比赛!
He unexpectedly won the match!
Zhège xiǎo wèntí tā jìng huā le yī zhěng tiān de shíjiān lái jiějué.
这个小问题他竟花了一整天的时间来解决。
He actually spent a whole day solving this minor issue.
Wǒ méi xiǎng dào tā jìngrán huì zài pàiduì shàng kū.
我没想到他竟然会在派对上哭。
I didn't expect him to go so far as to cry at the party.
Tā jìngrán wàngjìle wǒ de shēngrì.
他竟然忘记了我的生日。
He indeed forgot my birthday.