3 sentences

1. 讨论会在各个分组中进行。

   tǎo​lùn​huì zài gè gè fēn​zǔ zhōng jìn​xíng.

   Discussions were held in breakout groups.

   Source: Dong Chinese Dictionary

2. 专家们在讨论会上就气候变化问题交换了意见。

   zhuān​jiā men zài tǎo​lùn​huì shàng jiù qì​hòu biàn​huà wèn​tí jiāo​huàn le yì​jiàn.

   Experts exchanged views on climate change at the symposium.

   Source: Dong Chinese Dictionary

3. 在讨论会上，大家纷纷畅所欲言，提出了许多宝贵的建议。

   zài tǎo​lùn​huì shàng, dà​jiā fēn​fēn chàng​suǒ​yù​yán, tí​chū le xǔ​duō bǎo​guì de jiàn​yì.

   At the discussion meeting, everyone spoke freely and put forward many valuable suggestions.

   Source: Dong Chinese Dictionary