Is the content of chatting with teachers in the headline group infringing?

If you are for profit, then using other people's works requires the consent of the copyright owner or paying the fee, otherwise it is illegal and infringing.

Infringement as stipulated in Article 46 of the Copyright Law:

1, publishing his works without the permission of the copyright owner;

2. Publishing a work created in cooperation with others as one's own work without the permission of the co-author;

3, did not participate in the creation, in order to seek personal fame and fortune, signed in other people's works;

4. distorting or tampering with other people's works;

5. Plagiarizing other people's works;

6. Use the work by exhibition, shooting or similar shooting, or use the work by adaptation, translation and annotation without the permission of the copyright owner. Unless otherwise provided for in this law;

7, the use of other people's works, should pay remuneration but did not pay.