diff --git a/reference/datetime/functions/gmmktime.xml b/reference/datetime/functions/gmmktime.xml
index a6031f930..742e163d9 100755
--- a/reference/datetime/functions/gmmktime.xml
+++ b/reference/datetime/functions/gmmktime.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<!-- EN-Revision: 8734cc1232dfe9a0fc9e455f470c6bf000537402 Maintainer: mowangjuanzi Status: ready -->
+<!-- EN-Revision: 57e27d2a7615da2ee6de57ed27eb40b473d487cb Maintainer: mowangjuanzi Status: ready -->
 <!-- CREDITS: Luffy -->
 <refentry xml:id="function.gmmktime" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
@@ -100,7 +100,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   成功时返回 <type>int</type> Unix 时间戳，&return.falseforfailure;。
+   成功时返回 <type>int</type> Unix 时间戳，如果时间戳不适合 PHP 整数则返回 &false;。
   </para>
  </refsect1>
 
diff --git a/reference/datetime/functions/mktime.xml b/reference/datetime/functions/mktime.xml
index 0952aaea4..73f4b50cd 100755
--- a/reference/datetime/functions/mktime.xml
+++ b/reference/datetime/functions/mktime.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<!-- EN-Revision: 8734cc1232dfe9a0fc9e455f470c6bf000537402 Maintainer: HonestQiao Status: ready -->
+<!-- EN-Revision: 57e27d2a7615da2ee6de57ed27eb40b473d487cb Maintainer: HonestQiao Status: ready -->
 <!-- CREDITS: mowangjuanzi, Luffy -->
 <refentry xml:id="function.mktime" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
@@ -108,7 +108,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   <function>mktime</function> 根据给出的参数返回 Unix 时间戳。
+   <function>mktime</function> 根据给出的参数返回 Unix 时间戳，如果时间戳不适合 PHP 整数则返回 &false;。
   </para>
  </refsect1>
 
diff --git a/reference/fileinfo/functions/finfo-file.xml b/reference/fileinfo/functions/finfo-file.xml
index a2cdd40e3..03c535c91 100644
--- a/reference/fileinfo/functions/finfo-file.xml
+++ b/reference/fileinfo/functions/finfo-file.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<!-- EN-Revision: 1160ec4e7d21a2619e9661d6afe3a6356267c6c2 Maintainer: yuanyuqiang Status: ready -->
+<!-- EN-Revision: 811ee28918e320b3f2d9324ef0f9feae816091b5 Maintainer: yuanyuqiang Status: ready -->
 <!-- CREDITS: mowangjuanzi, Luffy -->
 <!-- Generated by xml_proto.php v2.3. Found in /scripts directory of phpdoc. -->
 <refentry xml:id="function.finfo-file" xmlns="http://docbook.org/ns/docbook">
@@ -108,7 +108,7 @@
     <programlisting role="php">
 <![CDATA[
 <?php
-$finfo = finfo_open(FILEINFO_MIME_TYPE); // 返回 mime 类型
+$finfo = finfo_open(FILEINFO_MIME_TYPE); // 返回 mime 类型，也被称为 mime 类型扩展。
 foreach (glob("*") as $filename) {
     echo finfo_file($finfo, $filename) . "\n";
 }