第一周限时优惠促销，赶快收集全套，千万别错过。
Time-limited discount for the first week. Collect them all and don't miss out.
首先，它们允许你在不同的网上书店选购电子书，许多还都有促销优惠。
First, they let you shop around fore-books at different online bookstores, and many run promotions.
首先，它们允许你在不同的网上书店选购电子书，许多还都有促销优惠。
First, they let you shop around fore-books at different online bookstores, and many run promotions.
应用推荐