Meaning of biàn:
辩
to dispute; to debate; to argue; to discuss
Tāmen zài yī gè huìyì shàng jiù zhège wèntí jìnxíng guò jīliè de biànlùn.
他们在一个会议上就这个问题进行过激烈的辩论。
They had a heated debate on this issue at a meeting.
Tāmen cānjiāle xuéxiào de biànlùn bǐsài.
他们参加了学校的辩论比赛。
They participated in the school's debate competition.
Tāmen xǐhuān zài kètáng shàng jìnxíng jīliè de biànlùn.
他们喜欢在课堂上进行激烈的辩论。
They like to engage in heated debates in the classroom.
Tāmen chángcháng biànlùn guānyú zhèngzhì de huàtí.
他们常常辩论关于政治的话题。
They often debate topics related to politics.