Never take out dollars and deposit them again. When you change US dollars into RMB, it is calculated according to the "buying price of cash".

The foreign currency remittance you received belongs to foreign currency. After receiving the remittance, you can deposit it directly in the passbook instead of taking it out first and then depositing it in the passbook.

Remittances are converted into RMB after being deposited in the passbook, and the "foreign exchange buying price" is higher than the "bill buying price"