The bid price and selling price refer to the meaning of buying or selling the base currency euro from the bank's point of view. Now you want to change RMB from the bank into euros, that is, sell your RMB to the bank and buy euros. For the bank, it is to sell the reserved euros and buy your RMB, so it depends on the selling price announced by the bank. If you have euros in your hand, it obviously depends on the buying price announced by the bank if you want to exchange RMB.

Secondly, the concepts of cash and cash, in short, cash refers to foreign currency bills remitted or brought in from abroad and transferred to personal bank accounts. Cash refers to foreign currency cash or money deposited in a bank in the form of foreign currency cash. Your current situation should be cash.

As for the middle price, it is the middle price announced by the central bank, also called the benchmark price.

The conversion price of BOC is equivalent to the benchmark price. If there is no benchmark price, the middle price converted by BOC itself.