zhěng chǎng tǎolùn pǎo piān le sān ge xiǎoshí, héxīn wèntí dào zuìhòu yě méi rén tí

整场讨论跑偏了三个小时，核心问题到最后也没人提。

The whole discussion went off track for three hours, and the core issue was never brought up.