### Chinese: 看好编号下单，古董物品售出不退不换。
### English: <v>I'm optimistic about placing an order with a number</v>, and antique items are sold without refund or exchange.
### Errors: There is a major accuracy/mistranslation error at "I'm optimistic about placing an order with a number" within <v></v>.

### Improved English: Please check the serial number before placing an order, and all products of the antique type cannot be exchanged or refunded once sold.
