soapbox
noun [ C ] uk/ˈsəʊp.bɒks/ us/ˈsoʊp.bɑːks/
（为进行非正式的公共演讲而把木箱或其他物品当作）临时演讲台
a rough wooden box or any raised, temporary surface for people to stand on while making informal public speeches
Idiom
get on your soapboxidiom informal （激烈地）发表看法
to express your opinions about a particular subject forcefully
She never misses the chance to get on her soapbox about political reform. 她从不错过任何可以发表对政治改革看法的机会。