Some of them spoke pleasantly and were well behaved, while others were impudent and insulting.

他们当中的一些人谈吐不俗、举止得体，而另一些人则行为不恭、傲慢无礼。

《柯林斯英汉双解大词典》

They should be well behaved.

他们应该表现得很好。

youdao

The audience was surprisingly well behaved.

观众令人出奇地守秩序。

《牛津词典》

Songwriter William Gilbert, in the musical "Princess Ida",wrote: "Darwinian man,though well-behaved, at best is only a monkey shaved."

VOA: special.2011.03.13

You might say your child was good as gold when he behaved well at school.

VOA: special.2010.06.06

Her father,Peter Nemethi explained, "She was different than other children and people behaved differently as well."

VOA: standard.2010.06.30

Police said most visitors were "very well behaved" but there were 67 arrests on Sunday evening.

BBC: 'Record crowds' at Liverpool's Mathew Street Festival

With Goodell using an iron fist to discipline the league, players have been relatively well behaved.

FORBES: One Thing Every Sport's Commissioner Should Change in 2012

The normally rowdy infield crowd at the Kentucky Derby appears well behaved.

NPR: DERBY LIVE: Orb Wins After Surging Among Bettors