diff --git a/src/lib/ai.ts b/src/lib/ai.ts
index 3735b49..536cadb 100644
--- a/src/lib/ai.ts
+++ b/src/lib/ai.ts
@@ -35,7 +35,7 @@ export async function requestTranslations({
   const keysJson = JSON.stringify(items.map((it) => it.key));
   const instruction = [
     "你是一个专业的翻译助手。",
-    `请将多条原文同时翻译为这些目标语言：${targetList}，注意英语的首字母务必是大写。`,
+    `请使用当地人的习惯用语，将多条原文同时翻译为这些目标语言：${targetList}，注意英语的首字母务必是大写。`,
     "翻译偏好：",
     prompt,
     "严格要求：",
diff --git a/src/pages/editor.tsx b/src/pages/editor.tsx
index eb0100e..fa1f6c5 100644
--- a/src/pages/editor.tsx
+++ b/src/pages/editor.tsx
@@ -17,7 +17,7 @@ import {
   updateProject,
   deleteProjectDeep,
 } from "@/lib/db";
-import { ArrowBigDownDash, ArrowBigUpDash, ArrowLeft, Brackets, CaseSensitive, Languages, LocateFixed, MoreVertical, PencilLine, Trash2 } from "lucide-react";
+import { ArrowBigDownDash, ArrowBigUpDash, ArrowLeft, Brackets, CaseSensitive, Filter, Languages, LocateFixed, MoreVertical, PencilLine, Trash2 } from "lucide-react";
 import { useTranslationInlineEdit } from "@/hooks/biz/use-translation-inline-edit";
 import { flattenEntries, type FlatEntry, insertEntrySibling, removeEntryAtPath, renameEntryAtPath } from "@/lib/i18n-structure";
 import { ImportLanguageModal } from "@/components/biz/import-language-modal";
@@ -31,6 +31,7 @@ import {
   DropdownMenuTrigger,
   DropdownMenuContent,
   DropdownMenuItem,
+  DropdownMenuCheckboxItem,
   DropdownMenuSeparator,
 } from "@/components/ui/dropdown-menu";
 import { useClipboard } from "@/hooks/use-clipboard";
@@ -59,6 +60,7 @@ export default function Editor() {
   const [aiBulkOpen, setAiBulkOpen] = useState(false);
   const [settingsOpen, setSettingsOpen] = useState(false);
   const [selected, setSelected] = useState<Set<string>>(new Set());
+  const [visibleLangs, setVisibleLangs] = useState<Set<string>>(new Set());
 
   const { copy } = useClipboard();
 
@@ -139,7 +141,14 @@ export default function Editor() {
     onError: (m) => setPageError(m),
   });
 
-  const tableWidth = useMemo(() => (languages.length * 200) + 36 + 60 + 300, [languages.length]);
+  // 同步可见语言集合
+  useEffect(() => {
+    setVisibleLangs(new Set(languages));
+  }, [languages]);
+
+  const displayedLanguages = useMemo(() => languages.filter((l) => visibleLangs.has(l)), [languages, visibleLangs]);
+
+  const tableWidth = useMemo(() => (displayedLanguages.length * 200) + 36 + 60 + 300, [displayedLanguages.length]);
 
   function computeSuggestedLanguages(pathsInput: string[]): string[] {
     if (languages.length === 0 || pathsInput.length === 0) return [];
@@ -204,12 +213,12 @@ export default function Editor() {
         />
       </th>
       <th style={{ width: 300 }} className="text-left px-3 py-2">翻译条目名称</th>
-      {languages.map((lang) => (
+      {displayedLanguages.map((lang) => (
         <th key={lang} style={{ width: 200 }} className="text-left px-3 py-2">{lang}</th>
       ))}
       <th style={{ width: 60 }} className="sticky right-0 text-left px-3 py-2 bg-muted">操作</th>
     </tr>
-  ), [languages, allSelected, entries]);
+  ), [displayedLanguages, allSelected, entries]);
 
   const renderItemContent = useCallback((_idx: number, entry: FlatEntry) => {
     const handleCopy = () => {
@@ -236,7 +245,7 @@ export default function Editor() {
             {entry.path}
           </button>
         </td>
-        {languages.map((lang) => {
+        {displayedLanguages.map((lang) => {
           const isEditing = inline.isEditingCell(entry.path, lang);
           const isSaving = inline.isSavingCell(entry.path, lang);
           const displayValue = inline.getDisplayValue(entry.path, lang);
@@ -324,7 +333,7 @@ export default function Editor() {
         </td>
       </>
     );
-  }, [languages, inline, projectId, structure, setStructure, setValuesByLang, copy, selected]);
+  }, [displayedLanguages, inline, projectId, structure, setStructure, setValuesByLang, copy, selected]);
 
   useEffect(() => {
     if (!projectId || languages.length === 0) return;
@@ -414,6 +423,39 @@ export default function Editor() {
               </Button>
             </form>
             <div className="mb-2 flex items-center gap-2">
+              <DropdownMenu>
+                <DropdownMenuTrigger asChild>
+                  <Button variant="outline" title="过滤显示的语言列">
+                    <Filter />
+                    语言过滤
+                  </Button>
+                </DropdownMenuTrigger>
+                <DropdownMenuContent align="start" className="w-48">
+                  <DropdownMenuItem onClick={() => setVisibleLangs(new Set(languages))}>
+                    全部显示
+                  </DropdownMenuItem>
+                  <DropdownMenuSeparator />
+                  {languages.map((lang) => {
+                    const checked = visibleLangs.has(lang);
+                    return (
+                      <DropdownMenuCheckboxItem
+                        key={lang}
+                        onSelect={(e) => e.preventDefault()}
+                        checked={checked}
+                        onCheckedChange={(v) => {
+                          setVisibleLangs((prev) => {
+                            const next = new Set(prev);
+                            if (v) next.add(lang); else next.delete(lang);
+                            return next;
+                          });
+                        }}
+                      >
+                        {lang}
+                      </DropdownMenuCheckboxItem>
+                    );
+                  })}
+                </DropdownMenuContent>
+              </DropdownMenu>
               <Button
                 variant="outline"
                 disabled={selected.size === 0 || selected.size > MAX_AI_ITEMS}