Why China Hates The Carry Trade

I had a student ask about this...Why China Hates The Carry Trade: "A carry trade is when you borrow from a currency with a low interest rate, and then invest in a currency with a higher interest rate. Say the US interest rate is 3%, and the Chinese interest rate is 5%. Borrow at 3%, invest at 5%, make 2%, because the Chinese yuan is pegged to the dollar at a fixed rate. "In international finance