diff --git a/lib/index.js b/lib/index.js
index 4db8fe0..9d797ed 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,5 +1,5 @@
-var translate = require('./translate')
+var romanize = require('./romanize')
 module.exports = exports = {
-    letter: translate.letter
-  , pinyin: translate.pinyin
+    letter: romanize.letter
+  , pinyin: romanize.pinyin
 }
diff --git a/lib/translate.js b/lib/romanize.js
similarity index 90%
rename from lib/translate.js
rename to lib/romanize.js
index fd63a04..0b4a3bc 100644
--- a/lib/translate.js
+++ b/lib/romanize.js
@@ -1,8 +1,8 @@
-var translate = {}
+var romanize = {}
   , util = require('./util')
   , code = require('./Mandarin.json')
 
-/* translate Chinese word into English letter
+/* romanize Chinese word into English letter
  * @param `chinese` {String} Chinese words or whatever
  * @param [optional] `separator` {String} separator for the letters
  * @param [optional] `callback(err, result)` {Function} if a callback is specified,
@@ -16,7 +16,7 @@ var translate = {}
  *     console.log(result) // zhong wen
  *   })
  */
-translate.letter = function(){
+romanize.letter = function(){
   var args = [].slice.call(arguments)
     , originalArgs = args.slice()
     , chinese = args.shift()
@@ -35,10 +35,10 @@ translate.letter = function(){
     make(chinese, code, separator);
 }
 
-/* translate Chinese into Pinyin(letters with notation)
+/* romanize Chinese into Pinyin(letters with notation)
  * @param `chinese` {String} Chinese words or wahtever
  */
-translate.pinyin = function(chinese){
+romanize.pinyin = function(chinese){
   if(!chinese) return [];
   if(!util.isChinese(chinese)) return [chinese];
 
@@ -79,4 +79,4 @@ translate.pinyin = function(chinese){
   return result;
 }
 
-module.exports = exports = translate;
+module.exports = exports = romanize;
diff --git a/lib/util.js b/lib/util.js
index 8a41389..3a7a019 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -18,7 +18,7 @@ module.exports = exports = {
 
     words = escape(words).split('%u'), words.shift(), words;
     words.forEach(function(item, i) {
-      // rember to translate non-Chinese words to it's own unicode
+      // rember to romanize non-Chinese words to it's own unicode
       words[i] = data[item] ? data[item].split(/\s+/)[0].replace(/[1-5]/,'') : item.replace(/[%@*]+/g,'');
     })
 
diff --git a/package.json b/package.json
index 3973d6c..799099b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "han",
-  "description": "a module for tanslating Chinese(汉字) into pinyin",
+  "description": "Generate romanized Chinese strings",
   "version": "0.0.7",
   "author": "Sofish Lin <sofish@me.com>",
   "dependencies": {},
diff --git a/readme.md b/readme.md
index e94bf1e..b1f32b4 100644
--- a/readme.md
+++ b/readme.md
@@ -3,7 +3,7 @@
 [![Build Status](https://travis-ci.org/sofish/han.png)](https://travis-ci.org/sofish/han)
 [![Coverage Status](https://coveralls.io/repos/sofish/han/badge.png)](https://coveralls.io/r/sofish/han)
 
-a module for tanslating Chinese(汉字) into pinyin.
+Generate romanized Chinese strings
 
 ## Installation
 
@@ -13,50 +13,48 @@ $ npm install han
 
 ## Usage
 
-### 1. han.letter()
+### 1. `han.letter()`
 
 ```js
 han.letter(chinese ,[separator ,[callback(err, data)])
 ```
-Use the `letter` method to translate Chinese in to english letter:
+Use the `letter` method to generate a romanization without tone marks:
 
 ```js
 var han = require('han');
 
 han.letter('中文') // zhongwen
 han.letter('中文', '-') // zhong-wen
-han.letter('中文', function(err, result){
-  console.log(result) // zhongwen
-})
 ```
 
-The `letter` method has 3 params by default, they can all be _**optional**_, it depends on you(^^). follow the message below, you can also find it at [lib/translate.js](https://github.com/sofish/han/blob/master/lib/translate.js):
-
 ```js
 /* @param `chinese` {String} Chinese word
  * @param [optional] `separator` {String} separator for the letters
  * @param [optional] `callback(err, result)` {Function} if a callback is specified,
- *   the program will use an async way to do the translation 
+ *   the program will use an async way to do the translation
  */
 ```
 
-### 2. han.pinyin(chinese)
+### 2. `han.pinyin(chinese)`
 
-User the `pinyin` method to translate Chinese into Pinyin(letters with notation):
+Use the `pinyin` method to generate an array of lists consisting of all possible
+pronunciations of corresponding characters:
 
 ```js
 han.pinyin('中文') // [ [ 'zhōng', 'zhòng' ], [ 'wén', 'wèn' ] ]
 
-// mixin are allowed, like:
+// Mixed text is allowed, e.g.:
 han.pinyin('My Chinese name is 小鱼(sofish)');
 // [ 'My Chinese name is ', [ 'xǐao' ], [ 'yú' ], '(sofish)' ]
-
-// also running with messy code, see the testcase below
 ```
 
-#### __WHY__ the return value is an array?
+#### __Why return arrays?__
 
-Beause that a Chinese word always having more than one pronunciation. You may want to allow users to correct your output that is generated by your program in an automatic way(like google?! yep!).
+Certain characters may have multiple pronuncations, primarily
+differing in tone, the syllable itself in rare cases, or both.
+An example of such a character is **的**, which can be read as
+either *de* or *dí*.
+Output is generated regardless of context.
 
 ## Testcase
 
@@ -112,7 +110,6 @@ console.log(han.pinyin('#$%^&*中23¢∞§¶•ª52849文@#$%^&*(意思，还有
 Licensed under [MIT](https://github.com/sofish/han/blob/master/LICENSE).
 
 
-## Contributers:
-
-Specail thank to [fayland](https://github.com/fayland/perl-lingua-han/tree/master/Lingua-Han-PinYin/lib/Lingua/Han/PinYin) for providing the unicode table of Chinese.
+## Contributors:
 
+Character pronunciation data file courtesy of [fayland](https://github.com/fayland/perl-lingua-han/tree/master/Lingua-Han-PinYin/lib/Lingua/Han/PinYin).
diff --git a/test/test.js b/test/test.js
index 0a358c5..ad87988 100644
--- a/test/test.js
+++ b/test/test.js
@@ -8,7 +8,7 @@ describe('han', function () {
     han.letter('要实现 Speaker Deck 那种中文转拼音的', '-').should.be.equal(expect);
   });
 
-  it('letter with 特殊符号', function () {
+  it('letter with input mixed with special characters', function () {
     han.letter('中aaaaa中¢∞§¶•誩aa文喳aa').should.be.equal('zhongaaaaa4e2da2221ea7b62022jingaawenzhaaa');
     han.letter('中EnglishWords¢∞§¶•ªº文', '-').should.be.equal('zhong-englishwords-221ea7b6-2022aaba-wen');
   });