diff --git a/plugins/Sidebar/languages/zh.json b/plugins/Sidebar/languages/zh.json
index 696084cf..639ac7f6 100644
--- a/plugins/Sidebar/languages/zh.json
+++ b/plugins/Sidebar/languages/zh.json
@@ -27,8 +27,11 @@
 
 	"Optional files": "可选文件",
 	"Downloaded": "已下载",
-	"Download and help distribute all files": "下载并帮助分发所有文件",
+	"Help distribute added optional files": "帮助分发新的可选文件",
 	"Auto download big file size limit": "自动下载大文件大小限制",
+	"Download previous files": "下载之前的文件",
+	"Optional files download started": "可选文件下载启动",
+	"Optional files downloaded": "可选文件下载完成",
 	"Total size": "总大小",
 	"Downloaded files": "已下载文件",
 
diff --git a/plugins/UiConfig/languages/zh.json b/plugins/UiConfig/languages/zh.json
index 6d6e9f80..9240b249 100644
--- a/plugins/UiConfig/languages/zh.json
+++ b/plugins/UiConfig/languages/zh.json
@@ -41,6 +41,19 @@
 	"Everything": "记录全部",
 	"Only important messages": "仅记录重要信息",
 	"Only errors": "仅记录错误",
+	"Threads for async file system reads": "文件系统异步读取线程",
+	"Threads for async file system writes": "文件系统异步写入线程",
+	"Threads for cryptographic functions": "密码函数线程",
+	"Threads for database operations": "数据库操作线程",
+	"Sync read": "同步读取",
+	"Sync write": "同步写入",
+	"Sync execution": "同步执行",
+	"1 thread": "1个线程",
+	"2 threads": "2个线程",
+	"3 threads": "3个线程",
+	"4 threads": "4个线程",
+	"5 threads": "5个线程",
+	"10 threads": "10个线程",
 
 	" configuration item value changed": " 个配置值已经改变",
 	"Save settings": "保存配置",