hot button
US /ˈhɑːt ˌbʌt.ən/
UK /ˈhɑːt ˌbʌt.ən/

1.
热点问题, 敏感话题
a topic or issue that is highly controversial and emotionally charged, often leading to strong reactions or arguments
:
•
Abortion is a hot-button issue in many political debates.
堕胎在许多政治辩论中是一个热点问题。
•
Bringing up taxes is always a hot-button topic at family gatherings.
在家庭聚会中,提起税收总是一个热点话题。