Race has always been a hot button in this country's history.

种族一直是这个国家历史上争论不休的问题。

《牛津词典》

I's a tough thing to talk about because it's such a hot button issue.

我不强硬的事谈谈，因为它的这样一个热点。

youdao

He does have one exceptional ability: he can detect a hot button a mile away and depress it with remarkable accuracy.

他确实有一个例外的能力：他在一英里以外就可以感觉到他人的情绪变化，并能很精准地挑起他人的怒气。

youdao

Immigration is a hot button issue anywhere in the world, including the United States.

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Of course, executive compensation has long been a hot button issue for corporate watchdogs.

FORBES: More Info Needed on Pay for Performance

Several states banned same sex marriage last year by ballot initiative and it's still a hot button issue.

NPR: Year in Review: Homosexuality in the Headlines