Happy semester 2, everybody! We hope you've had time to eat spring rolls (春卷) and soup balls (湯圓)!
Today's idiom is a hot potato. Not a 熱土豆, but a really important issue or subject.
For example, the new laws for President Xi Jiping's stay in office are a real hot potato for China right now.
What are some other hot potatoes you can think of?