究竟 (jiū jìng) — to go to the bottom of a matter; after all

究竟

jiū jìng

HSK 4

to go to the bottom of a matterafter allwhen all is said and donefinally

就这个词提问

究

to dig into, to investigate; actually, after all

部首穴部件 ⿱穴九

竟

finally, after all, at last; indeed; unexpected

部首立部件 ⿱音儿