minefield

1. N-COUNT A minefield is an area of land or water where explosive mines have been hidden. 地雷区; 水雷区

2. N-COUNT If you describe a situation as a minefield, you are emphasizing that there are a lot of hidden dangers or problems, and people need to behave with care because things could easily go wrong. 充满隐伏危险的事物[强调]

The whole subject is a political minefield. 整个话题成了一个政治雷区。