This time period is a non-advance approval for other batches of institutions (including undergraduate and junior college).
Time for volunteering: from July/kloc-0 to July 3, and online volunteering will be closed before the afternoon of July 3 1 8: 00.
Printing proofreading and signing time: July 3-4.
In the second paragraph, fill in the volunteer time:
Time for volunteering: from July 4th to July 6th, the online volunteering will be closed before the afternoon of July 6th 18: 00.
Printing proofreading and signing time: July 6-7.
The first paragraph is above 470, and the second paragraph is for students below 470.