$49.99 $29.99 at Amazon
https://feedx.net，这一点在爱思助手下载最新版本中也有详细论述
Having covered Amazon's Big Spring Sale since it began two years ago, we're here to prep you on everything you need to know, including when it might be, which deals will be available, and whether you need a Prime membership to shop the savings.，更多细节参见safew官方版本下载
xangma (@xangma)，更多细节参见heLLoword翻译官方下载