ageback made the following 4 translations:

• 'Selection:' as '选择:' in SumatraPDF / cn
• 'Use &tabs' as '使用标签页(&T)' in SumatraPDF / cn
• 'Cursor position:' as '光标位置:' in SumatraPDF / cn
• 'Open in %s' as '用 %s 打开' in SumatraPDF / cn