拍下后是不可以还价, 但如果你看到有竞拍的产品, 在快结束时还没人出价. 可以私信卖家, 把你的心理价位告诉他, 看他愿不愿意出.
You cannot bargain after bidding, but if you see a product that is being auctioned and no one has bid for it when the auction is almost over, you can send a private message to the seller and tell him your desired price to see if he is willing to offer it.