论 + Topic
The verb 论 (lùn) means 'to discuss,' 'to comment on,' or 'to argue,' and is often used as a component in compound words like 讨论 (to discuss) and 评论 (to comment). On its own, it appears in more literary or formal contexts. It implies analytical or evaluative discussion rather than casual conversation.
大家来讨论一下这个方案。
dàjiā lái tǎolùn yīxià zhège fāng'àn.
Let's all discuss this plan.
网上很多人在评论这件事。
wǎngshàng hěn duō rén zài pínglùn zhè jiàn shì.
Many people online are commenting on this matter.
无论从哪个角度来论,他的做法都不合适。
wúlùn cóng nǎge jiǎodù lái lùn, tā de zuòfǎ dōu bù héshì.
No matter from which angle you argue it, his approach is inappropriate.