Update the untranslated content for a specific language

[DerickCypho]

I've noticed that for the zh-CN localization pack, there's quite a lot of new content left untranslated. I want to contribute to the localization pack to reflect the latest changes, but since there's an existing version already, do I only translate the "new" (untranslated content) after the last update, or do I go from scratch all over again instead?

[shadow01a]

将需翻译的语言文件对照en原始文件删改内容即可，这里我使用的是vscode的文件对照。