fix: 翻译合并完毕，去掉以前版本的字典，只使用上一版

aio/content/guide/pipes.md

@@ -511,7 +511,7 @@ a point that's discussed later in this page.
 
 <h3 class="no-toc">Impure pipes</h3>
 
-### 非纯管道
+<h3 class="no-toc">非纯管道</h3>
 
 Angular executes an *impure pipe*  during every component change detection cycle.
 An impure pipe is called often, as often as every keystroke or mouse-move.

aio/tools/translator/bin/extract-all.ts

@@ -1,8 +1,5 @@
 #!/usr/bin/env ts-node
 import { dirs } from '../dirs';
 import { gatherFromDirectory } from '../extractor';
-import { translateDirectory } from '../translate';
 
-gatherFromDirectory(dirs.aio + '../../content-1/', dirs.here + 'dict-1.json');
-gatherFromDirectory(dirs.aio + '../../content-2/', dirs.here + 'dict-2.json');
-gatherFromDirectory(dirs.aio + '../../content-3/', dirs.here + 'dict-3.json');
+gatherFromDirectory(dirs.content, dirs.here + 'dict-latest.json');

aio/tools/translator/translate.ts

@@ -5,7 +5,7 @@ import { dirs } from './dirs';
 import { listMarkdownFiles } from './extractor';
 import { indentOf, normalizeLines, repeat } from './utils';
 
-export const dict = require('./dict-2.json') as DictEntry[];
+export const dict = require('./dict-latest.json') as DictEntry[];
 
 export function lookup(english: string, filename: RegExp = /.*/): DictEntry[] {
   const entries = dict