hot potato
US /hɑt pəˈteɪ.toʊ/
UK /hɑt pəˈteɪ.toʊ/

1.
燙手山芋, 棘手問題
a controversial issue or problem that is awkward or unpleasant to deal with
:
•
The issue of climate change has become a real hot potato in political debates.
氣候變化問題在政治辯論中成了一個真正的燙手山芋。
•
No one wants to deal with that hot potato of a budget deficit.
沒有人願意處理預算赤字這個燙手山芋。