欢迎使用，前两单每单可减$10
编辑：更正优惠信息
确定是每单减20美元吗？
Get $20 in Weee! Points
Earn $10 in points on your friend’s 1st delivery within 14 days upon your invitation and another $10 for 2nd delivery in 30 days.
Give $20 off across 2 orders
Your friend will get $10 off each of first 2 orders. （我去重新读了下它的规则，貌似是$10，$20刀要给到我们的两单，因为我也下了一单，只能减去$10在我的第一单）
亲测有效，欢迎使用:)