you can consider wire transfer

wire transfer is very quick and safe, and has a set fee of $30-60, unless you have a LOT of money to move, some bank may have different rules. Call the bank to check.

But if you wire transfer, you need to have a US$ account opened in the Bank of China first, which is not hard to do. if you trust your family, you can ask them to go open one under their name. Once the money is wired and processed over there, you can withdraw from it just like any other bank account, and you can withdraw US$.

Make sure to leave some money for yourself since you will still be here for at least a few more days after closing your bank account.