delete chinese character quickly

this is a subtitle.srt, I want to delete all the Chinese character(like this:距离地球4亿英里，存在这一个迷你太阳系，), how can I do it using vim command?
I know dd can delete a line, but there are too many liens.

1
00:00:03,400 --> 00:00:07,730
距离地球4亿英里，存在这一个迷你太阳系，
Four hundred million miles from Earth, exists a mini solar system

2
00:00:07,760 --> 00:00:12,390
60多个卫星围绕着一个强大的气态行星旋转。
of over 60 moons rotating around a powerful planet of gas.

3
00:00:17,770 --> 00:00:20,980
它流动的颜色和斑点保持了奇异的美景，
Its flowing colors and spots hold strange beauty,

4
00:00:21,530 --> 00:00:24,390
然而也包含了强烈的风暴、喷射气流。
but contain violent storms and jet streams.

--
--
You received this message from the "vim_use" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

---
You received this message because you are subscribed to the Google Groups "vim_use" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.