Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/e6993b3d1f68a36b3280aa5039c3fc34.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 Swarthout例句_Swarthout英汉例句_Swarthout双解例句_沉淀汉英词典
Determined to find a better way to trade books, he teamed up with partner Robert Swarthout, who had developed a college textbook exchange. 网站上就有固定格式的邮寄包装纸可以列印，寄书人只需贴上邮票就可以寄出，换书程序非常简单方便。