diff --git a/Source/Modules/AppDelegate.swift b/Source/Modules/AppDelegate.swift
index 3bd16d88..a0c3037d 100644
--- a/Source/Modules/AppDelegate.swift
+++ b/Source/Modules/AppDelegate.swift
@@ -142,7 +142,8 @@ struct VersionUpdateApi {
 @objc(AppDelegate)
 class AppDelegate: NSObject, NSApplicationDelegate, ctlNonModalAlertWindowDelegate, FSEventStreamHelperDelegate {
     func helper(_ helper: FSEventStreamHelper, didReceive events: [FSEventStreamHelper.Event]) {
-        DispatchQueue.main.async {
+        // 拖一秒鐘再重載，畢竟有些有特殊需求的使用者可能會想使用巨型自訂語彙檔案。
+        DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 1) {
             if Preferences.shouldAutoReloadUserDataFiles {
                 mgrLangModel.loadUserPhrases()
                 mgrLangModel.loadUserPhraseReplacement()