diff --git a/default.config b/default.config
index e57eb08..9c732e1 100755
--- a/default.config
+++ b/default.config
@@ -321,13 +321,13 @@ MultipleTTL 1
 # 传染机制：
 # 某些域名有 CName 记录，例如 www.windowsupdate.com：
 # ;; QUESTION SECTION:
-# ;www.windowsupdate.com.		IN	A
+# ;www.windowsupdate.com.       IN  A
 #
 # ;; ANSWER SECTION:
-# www.windowsupdate.com.	3585	IN	CNAME	windowsupdate.microsoft.nsatc.net.      （记录一）
-# windowsupdate.microsoft.nsatc.net. 285 IN CNAME	www.update.microsoft.com.nsatc.net. （记录二）
-# www.update.microsoft.com.nsatc.net. 285	IN A	134.170.58.222                      （记录三）
-# www.update.microsoft.com.nsatc.net. 285	IN A	65.55.50.157                        （记录四）
+# www.windowsupdate.com.    3585    IN  CNAME   windowsupdate.microsoft.nsatc.net.      （记录一）
+# windowsupdate.microsoft.nsatc.net. 285 IN CNAME   www.update.microsoft.com.nsatc.net. （记录二）
+# www.update.microsoft.com.nsatc.net. 285   IN A    134.170.58.222                      （记录三）
+# www.update.microsoft.com.nsatc.net. 285   IN A    65.55.50.157                        （记录四）
 #
 # 如果仅仅指定了 `www.windowsupdate.com' 的缓存控制，那么 `windowsupdate.microsoft.nsatc.net' 和 `www.update.microsoft.com.nsatc.net' 的记录以什么规则进行处理？是继承 `www.windowsupdate.com' 的缓存设置，还是使用自己专门的设置（如果有的话）？
 # 可以指定传染机制来解决这个问题
@@ -383,7 +383,7 @@ OverwriteCache false
 # DisabledType <NUM1>,<NUM2>,.....
 # 禁止查询的 DNS 类型列表，每个类型（用数字代表）之间用半角逗号 (`,') 分隔 (since 2.2)
 # 所有的 DNS 类型：
-# A	      1   IPv4 地址
+# A           1   IPv4 地址
 # AAAA       28   IPv6 地址
 # APL        42
 # CERT       37
@@ -392,27 +392,27 @@ OverwriteCache false
 # DLV     32769
 # DNAME      39
 # DNSKEY     48
-# DS	     43
+# DS         43
 # HIP        55
 # IPSECKEY   45
 # KEY        25
-# KX	     36
+# KX         36
 # LOC        29
-# MX	     15
+# MX         15
 # NAPTR      35
-# NS	      2   Name Server
+# NS          2   Name Server
 # NSEC       47
 # NSEC3      50
 # NSEC3PARAM 51
 # PTR        12   Domain pointer
 # RRSIG      46
-# RP	     17
+# RP         17
 # SIG        24
 # SOA         6   start of authority record
 # SPF        99
 # SRV        33
 # SSHFP      44
-# TA	  32768
+# TA      32768
 # TKEY      249
 # TSIG      250
 # TXT        16
diff --git a/default.en.config b/default.en.config
index 367bfe1..aa9175e 100755
--- a/default.en.config
+++ b/default.en.config
@@ -368,13 +368,13 @@ MultipleTTL 1
 # Contagiousness:
 # Problem arised for domains that have CName records, such as www.windowsupdate.com:
 #  ;; QUESTION SECTION:
-#  ;www.windowsupdate.com.		IN	A
+#  ;www.windowsupdate.com.      IN  A
 #
 #  ;; ANSWER SECTION:
-#  www.windowsupdate.com.	3585	IN	CNAME	windowsupdate.microsoft.nsatc.net.       (Record 1)
-#  windowsupdate.microsoft.nsatc.net. 285 IN CNAME	www.update.microsoft.com.nsatc.net.  (Record 2)
-#  www.update.microsoft.com.nsatc.net. 285	IN A	134.170.58.222                       (Record 3)
-#  www.update.microsoft.com.nsatc.net. 285	IN A	65.55.50.157                         (Record 4)
+#  www.windowsupdate.com.   3585    IN  CNAME   windowsupdate.microsoft.nsatc.net.       (Record 1)
+#  windowsupdate.microsoft.nsatc.net. 285 IN CNAME  www.update.microsoft.com.nsatc.net.  (Record 2)
+#  www.update.microsoft.com.nsatc.net. 285  IN A    134.170.58.222                       (Record 3)
+#  www.update.microsoft.com.nsatc.net. 285  IN A    65.55.50.157                         (Record 4)
 #
 # Consider if there is a control rule for `www.windowsupdate.com',
 #     how to handle with `windowsupdate.microsoft.nsatc.net' and
@@ -437,7 +437,7 @@ OverwriteCache false
 # DisabledType <NUM1>,<NUM2>,.....
 # Refuse to query specified types of DNS (since 2.2)
 # Some DNS types:
-# A	          1   IPv4 Address
+# A           1   IPv4 Address
 # AAAA       28   IPv6 Address
 # APL        42
 # CERT       37
@@ -446,27 +446,27 @@ OverwriteCache false
 # DLV     32769
 # DNAME      39
 # DNSKEY     48
-# DS	     43
+# DS         43
 # HIP        55
 # IPSECKEY   45
 # KEY        25
-# KX	     36
+# KX         36
 # LOC        29
-# MX	     15
+# MX         15
 # NAPTR      35
-# NS	      2   Name Server
+# NS          2   Name Server
 # NSEC       47
 # NSEC3      50
 # NSEC3PARAM 51
 # PTR        12   Domain pointer
 # RRSIG      46
-# RP	     17
+# RP         17
 # SIG        24
 # SOA         6   start of authority record
 # SPF        99
 # SRV        33
 # SSHFP      44
-# TA	  32768
+# TA      32768
 # TKEY      249
 # TSIG      250
 # TXT        16