### Chinese: 【速开发票，领券下单,优质售后，支持7天无理由退换】
### English: [Quick issuance of invoices, ordering with coupons, high-quality after-sales support, no reason to refund or exchange within 7 days]
### Errors: There is a major error of incorrect translation is missing content from the correct translation at "no reason to refund or exchange". There is a major error of problems with grammar, other than orthography at "Quick issuance of invoices".

### Improved English: [Quick invoice issuing, get coupon before you place the order, quality after-sale service, support return or replacement within 7 days without reason]