Is there a deadline for submitting a video or article for each month?
是否为每个月提交视频或文章有截止日期？
Yes. Uploads must be received by the 20th of each month to be eligible for credit that month.  If you miss the deadline, then that upload will be credited towards the next month.
是的。  上传必须在每月 20 日之前收到，才有资格在该月获得积分。    如果您错过了截止日期，则该上传将在下个月进行。