diff --git a/sources/talk/20150709 7 command line tools for monitoring your Linux system.md b/sources/talk/20150709 7 command line tools for monitoring your Linux system.md
index e036a70d50..caac29be68 100644
--- a/sources/talk/20150709 7 command line tools for monitoring your Linux system.md	
+++ b/sources/talk/20150709 7 command line tools for monitoring your Linux system.md	
@@ -48,7 +48,7 @@ Pstree“以树状图显示正在运行中的进程。如果pid被省略的话
 
 ### pmap ###
 
-Understanding just how an app uses memory is often crucial in debugging, and the pmap produces just such information when given a process ID (PID). The screenshot shows the medium weight output generated by using the “-x”switch. You can get pmap to produce even more detailed information using the “-X”switch but you’ll need a much wider terminal window.
+理解一个应用程序在调试过程中如何使用内存是至关重要的，而pmap的作用就是当给出一个进程ID(PID)时显示出相关信息。上面的截图展示的是使用“-x”选项所产生的部分输出，你也可以用pmap的“-X”选项来获取更多的细节信息但是前提是你要有个更宽的终端窗口。
 
 ![Image courtesy Mark Gibbs](http://images.techhive.com/images/article/2015/06/command-line-tools-monitoring-linux-system-9-100591900-orig.png)