The L/C remai valid until the 15th day after shipment.

　　信用證在裝船淘寶怎么取消訂單后15天內有效。

　　The Mid-Autumn Festival falls on the 15th day of the 8th lunar month.

　　中秋節定于每年的陰歷八月十五日。

　　Valid for negotiation in China until the 15th day after the month of shipment.

　　議付有效期為裝運月份后第15天在中國到期。