diff --git a/src/net/download.ts b/src/net/download.ts
index 5e2e157..1021365 100644
--- a/src/net/download.ts
+++ b/src/net/download.ts
@@ -1,6 +1,3 @@
-import zlib from 'zlib'
-import http from 'http'
-import https from 'https'
 import crypto from 'crypto'
 import * as qrcUtil from '../lyric/qrc'
 import * as krcUtil from '../lyric/krc'
@@ -20,16 +17,6 @@ interface IQQMusicLyricDownloadOption {
 	singerName?: string | string[]
 }
 
-/** QQ音乐歌词下载结果 */
-interface IQQMusicDownloadResult {
-	/** 歌词内容 */
-	lyric: string
-	/** 翻译内容 */
-	trans: string | null
-	/** 音译内容 */
-	roma: string | null
-}
-
 /**
  * 从QQ音乐API下载歌词
  * @param option 下载选项
@@ -131,6 +118,8 @@ interface IKugouLyricDownloadOption {
  * 
  * __`id`和`accessKey`可以通过歌词搜索api获得__
  * 
+ * `http://lyrics.kugou.com/search?ver=1&man=yes&client=pc&keyword=<KW>&duration=<DUR>&hash=<HASH>`
+ * 
  * @param option 下载选项
  * @returns krc歌词文本内容
  */