要运费额我只是要买一个case,但是就15美金,加上折扣才10块钱,能不能用你的prime账户下省点运费,我付定金给你... http://www.amazon.com/Marware-Atlas-Kindle-Cover-Paperwhite/dp/B005HSG3JC/ref=br_lf_m_1001068481_1_4_img?ie=UTF8&s=fiona-hardware&pf_rd_p=1510395862&pf_rd_s=center-4&pf_rd_t=1401&pf_rd_i=1001068481&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=0G1T1ZYDJ94FG87M5YMV 黑色.折扣代码:RP4H-KWGQ2S-CZ3JJZ 可以吗?