1, write about travel, tuition and so on.

2. China is a country with foreign exchange control. Every citizen only needs to exchange foreign currency equivalent to 50,000 US dollars every year, of which 20,000 US dollars can be exchanged for cash and 30,000 US dollars can be exchanged for cash. When citizens go to the bank to handle foreign exchange, they need to fill out a foreign currency exchange form. There are several options for foreign currency exchange, such as travel or tuition.