forthingCOCA²⁵⁴³³⁷⁺⁶ 基本例句 🌏为什么 One of the weakest aspects of the original Kindle was an abysmal interface for reading newspapers: It required painstaking back-and- forthing to get a grasp of contents. 老版本的 Kindle有个最为薄弱的环节，那就是阅读报纸的界面糟糕透顶：读者得来来回回辛苦地翻页才能真正搞清楚报纸的内容。 yeeyan