究竟 (jiū jìng) means “to go to the bottom of a matter; after all; when all is said and done; (in an interrogative sentence) finally; outcome; result”. It is an HSK 4 Chinese word in the HSK 3.0 vocabulary.
这究竟是什么?
Zhè jiūjìng shì shénme?
What exactly is this?
Updated: