diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 3bc0faf96d..4bcf7e1642 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -132,7 +132,8 @@ You can improve our translations with your Crowdin account.
 Your changes in Crowdin are automatically submitted as a PR (with the title "New Crowdin translations") to the repository.
 The owner [@syuilo](https://github.com/syuilo) merges the PR into the develop branch before the next release.
 
-If your language is not listed in Crowdin, please open an issue.
+If your language is not listed in Crowdin, please open an issue. We will add it to Crowdin.
+For newly added languages, once the translation progress per language exceeds 70%, it will be officially introduced into Misskey and made available to users.
 
 ![Crowdin](https://d322cqt584bo4o.cloudfront.net/misskey/localized.svg)