The JD.com Add-to-Cargo Item Task is:

JD.com Add-to-Cargo Item is a promotional method used by JD.com to promote products. That is to say, based on your original purchase, you can purchase products with a relatively high original price by adding a small amount of money. Common JD.com promotion methods include: holiday gifts (reductions), additional gifts, discounts, clearance, seasonal changes, buy-one-get-one-free, coupons, etc.