You can't contribute more than one manuscript, you can only publish it once. But you should correctly understand "multiple contributions for one manuscript". But now that we have the present form, we must use it flexibly!

In fact, it can't be understood as one-sided multi-submission, and the so-called authorization problem should be taken into account. If a newspaper and magazine is only local (referring to the city), then the authorization you give him is limited to the local area. If you send your manuscript to another place (also refers to the city) at this time, then you have not contributed more than one manuscript. On the other hand, if your manuscript is of a national nature, then if you contribute to other countries, it is not much contribution.

And if the magazines and newspapers you invested in for the first time get your approval, you can invest elsewhere. In this case, it is not a multiple contribution.

However, if you send your manuscript to other places without the first contributor's reply, then you have already contributed more than one article. It's a big no-no in the industry, and you will be despised wherever you go.

Therefore, if you contribute, you must recognize it clearly. If you contribute to a company and people don't give you an answer within a month (some magazines may be longer, and if they are longer, they will give you special instructions), you must never contribute to a second company. Moreover, even if you get a reply, investing in a second house beyond the scope of authorization is also oversupply.