話題は多様多種だった。の英語

We talked about a variety of topics.

The conversation turned on various subjects―ran on various topics.

The question was much discussed.

All sorts of rumors were abroad [in the air] about it.

It was a vexed question.

You will find a wide variety of contents.

The discussion was heated.

a collection of various stories

The discussions were highly productive.

The matter became the subject of heated discussion.

The matter gave rise to a lot of heated discussion.

The problem was under discussion.

There has been much debate about the bill.

a collection of various stories

There was a lively [an animated] discussion on this subject.

The question was discussed in detail.

introducing a different topic

this topic was popularly discussed

He is a man of varied experiences

He has had a checkered career.

There were voices raised both for and against the motion.

Those agenda items were taken up en bloc for discussion.

It was an argument of little substance.

Among the various topics...

There was much discussion about [on] the problems of teaching English.

The debate has been interesting, confusing, and sometimes horrifying.

The temperature of discussion began to rise.

At the symposium the problem was treated in detail by numerous speakers.

the argument went on lengthily

a hotly disputed issue