chapter06: Minor fixes of package management page

Fix two missed word, and use future term for assumption.

chapter06/pkgmgt.xml

@@ -37,7 +37,7 @@
     <listitem>
       <!--para>Dealing with package management takes the focus away from the goals
       of these books&mdash;teaching how a Linux system is built.</para-->
-      <para>处理包管理器偏离了本书的重点目标 —— 讲述如何构建 Linux 系统。
+      <para>处理包管理器会偏离本书的重点目标 —— 讲述如何构建 Linux 系统。
 	  </para>
     </listitem>
 
@@ -405,14 +405,14 @@ make DESTDIR=/usr/pkg/libfoo/1.1 install</userinput></screen>
     <filename>/etc/passwd</filename>,
     <filename>/etc/group</filename>,
     <phrase revision="systemd">
-      <filename>/etc/shadow</filename>, and
+      <filename>/etc/shadow</filename>, 以及
       <filename>/etc/ld.so.conf</filename>.
     </phrase>
     <phrase revision="sysv">
       <filename>/etc/shadow</filename>,
       <filename>/etc/ld.so.conf</filename>,
       <filename>/etc/sysconfig/rc.site</filename>,
-      <filename>/etc/sysconfig/network</filename>, and
+      <filename>/etc/sysconfig/network</filename>, 以及
       <filename>/etc/sysconfig/ifconfig.eth0</filename>.
     </phrase>
     </para>