初二英语作文题`

MP3
Many students have a MP3,it is very useful to listen to music or study English,but how to use a MP3?Let me tell you about it :First ,you must know the meaning of the push-buttons,for example ,the meaning of "VOL''is voice you can use this push-button to regulate the voice.Every push-button has diffrent meaning ,you must know them first ,if you do ,you can use it easily.
许多学生都有MP3,用它来听音乐或学习英语都很有用,但如何来使用一个MP3呢?让我来告诉你吧:首先,你必须知道每个按钮的意义,举个例子:"VOL''的意思是声音,你可以用这个按钮来调节声音.每一个按钮都有不同的含义,你必须先知道他们的用途,如果你这样做了,你就可以轻松的使用它了.

mp4怎么用:
很简单，你购买时应该带的有个小光盘，你把它装进电脑，安装成功后，把你想看的电影转换格式就可以在你的MP4里面播放了。如果还有什么不懂的，说明书上应该有的。
不过有的是有大小限制的，太大的视频它还是播放不了,所以我们要进一步的设置:
转换格式软件有一个视频设置,把视频宽度改成240.把长度改成360.好了,这就可以播放影视了.

Mp 4 how use:
Easy, you purchase should take of have a small CD, you pack it into the computer, want you after install success see of the movie conversion format can broadcast in you of the MP4.If still have what don't understa