a controversial issue that no one wants to deal with
一个没有人愿意处理的有争议的问题 (yī gè méi yǒu rén yuàn yì chǔ lǐ de yǒu zhēng yì de wèn tí)
"Immigration reform has become a political hot potato for the government."
"移民改革已成为政府的政治热土豆。" (Yímín gǎigé yǐ chéng wéi zhèngfǔ de **zhèngzhì rè tǔdòu**.)
something that has both positive and negative consequences
Don’t risk everything on a single plan.
to fall asleep suddenly, especially when sitting
to dominate a particular market
to follow the rules exactly
to become extremely popular online