Library（书目）
- open/打开：[enter]/回车
- delete/删除：[del]
- change library view/更换目录显示模式：[space]/空格
阅读界面
- next page/下一页：[space]、[p]
- previous page/上一页：[o]、/滚轮&轨迹球都支持翻页
- word selection/选字：[alt] + <滚轮or轨迹球>
- first page/回首页or顶端：[t]
- font size/字体大小：[+]、[-]
- change font/字体：[c]
- add bookmark/加书签：[b]
- add note/加注释or笔记：[B] /大写B=CAP+b
- full screen/全屏：[f] /常用阅读模式
- change theme/更换模板：[h] /我常用白底黑字&黑底白字
- quick search/快速搜索：[s]
- search next：[S] /大写S
- Justified text/列正字符：[j]
- select next link/跳至文中下一链接：[n]
- hyperlink back/返回文中链接处：[DEL]
- follow the link/打开文中链接：[ENTER]
- annotation view/查看注释列：[a]
- library view/查看目录：[l]、长按[back]返回
- margins/页边距：[m]
- line spacing/行间距：[L] /大写L
