diff --git a/lib/i18n/traditional-chinese.js b/lib/i18n/traditional-chinese.js
index 0a3acae55..ded8049cc 100644
--- a/lib/i18n/traditional-chinese.js
+++ b/lib/i18n/traditional-chinese.js
@@ -9,8 +9,26 @@
 // See COPYING for details
 "use strict";
 
+var keys = [
+    ["on", "開"],["off", "關"],["drip coffee","濾掛式 咖啡"],["espresso","義式 濃縮"],["latte","拿鐵"],["flat white", "牛奶 咖啡"],["white mocha","白摩卡"],
+    ["caramel mocha","星冰樂"],["mocha","摩卡"],["macchiato","瑪琪雅朵"],["caramel macchiato","白瑪琪雅朵"],["cappuccino","卡布其諾"],["americano","美式"],
+    ["heat","暖氣"],["cool","冷氣"],["track","歌曲"],["normal","普通"],["vibrate","振動"],["silent","靜音"],["auto","自動"],["away","不在"],["pool","共乘"],["select","uber 精選"],
+    ["suv","休旅車"],["assist","uber 關懷"],["best of youtube","熱門"],["recommended","推薦"],["paid","付費"],["music","音樂"],["comedy","喜劇"],["film and entertainment","電影 與 娛樂"],
+    ["gaming","遊戲"],["beauty and fashion","流行"],["from_tv","電視"],["automotive","汽車"],["animation","動畫"],["sports","動畫"],["diy","動手做"],["tech","科技"],["science","科學 與 自然"],
+    ["cooking","烹飪"],["causes","起因"],["news and politics","政治"],["lifestyle","生活 風格"],["raining","下雨"],["cloudy","多雲"],["sunny","晴天"],["snowy","下 雪"],["sleety","下 冰雹"],
+    ["drizzling","毛毛雨"],["windy","刮風"],["politics","政治"],["opinions","社論"],["local","地區"],["sports","運動"],["national","國家"],["world","國際"],["powerpost","焦點"],
+    ["capital weather gang","首都 天氣"],["morning mix","晨間 新聞"],["wonkblog"],["world news","世界 新聞"],["us business","美國 商業"],["business","商業"],["markets","市場"],
+    ["technology","科技"],["cat","貓"],["dog","狗"],["horse","馬"],["snail","蝸牛"],["year","年"],["yoda","尤達"],["shakespeare","莎士比亞"],["vulcan","瓦肯人"],["klingon","克林貢"],
+    ["viral","傳閱"],["rising","上升"],["uber_black","尊榮"]
+];
+
 function postprocessSynthetic(sentence, program) {
     // We need a dummy postprocessSynthetic() here
+    keys.forEach(function(key) {
+        var re = new RegExp("\\b" + key[0] + "\\b", "g");
+        if(sentence.match(re))
+            sentence = sentence.replace(key[0], key[1]);
+    });
     return sentence;
 }
 
diff --git a/test/test_i18n_chinese.js b/test/test_i18n_chinese.js
new file mode 100644
index 000000000..627f941bf
--- /dev/null
+++ b/test/test_i18n_chinese.js
@@ -0,0 +1,40 @@
+// -*- mode: js; indent-tabs-mode: nil; js-basic-offset: 4 -*-
+//
+// This file is part of ThingEngine
+//
+// Copyright 2019 National Taiwan University
+//
+// Author: Johnny Hsu <johnny.chhsu01@gmail.com>
+//
+// See COPYING for details
+"use strict";
+
+const assert = require('assert');
+
+const zh_tw = require('../lib/i18n/traditional-chinese');
+
+const SENTENCE_TEST_CASES = [
+    ["給 我 一杯 drip coffee", "給 我 一杯 濾掛式 咖啡"],
+    ["給 我 一杯 white mocha", "給 我 一杯 白摩卡"],
+    ["幫 我 放 music", "幫 我 放 音樂"],
+    ["今天 天氣 是 raining", "今天 天氣 是 下雨"],
+    ["台北 的 天氣 cloudy", "台北 的 天氣 多雲"],
+    ["給 我 powerpost 版 新聞", "給 我 焦點 版 新聞"],
+    ["福斯 新聞 的 us business 新聞", "福斯 新聞 的 美國 商業 新聞"],
+    ["叫 一 輛 uber uber_black", "叫 一 輛 uber 尊榮"],
+];
+
+function testPostProcessSynthetic() {
+    for (let i = 0; i < SENTENCE_TEST_CASES.length; i++) {
+        let [original, processed] = SENTENCE_TEST_CASES[i];
+        let result = zh_tw.postprocessSynthetic(original, "");
+        assert.strictEqual(processed, result);
+    }
+}
+
+async function main() {
+    testPostProcessSynthetic()
+}
+module.exports = main;
+if (!module.parent)
+    main();
\ No newline at end of file