2 sentences for 究竟 (jiū​jìng — outcome)

1. 大家都在等待事情的究竟。

   dà​jiā dōu zài děng​dài shì​qing de jiū​jìng.

   Everyone is waiting for the outcome of the matter.

   Source: Dong Chinese Dictionary

2. 我打算一个人进那个古老的山洞里探个究竟。

   wǒ dǎ​suàn yī gè rén jìn nà gè gǔ​lǎo de shān​dòng lǐ tàn gè jiū​jìng.

   I plan to go into that ancient cave alone to find out what is inside.

   Source: Dong Chinese Dictionary