PR is the abbreviation of Public Relations, which refers to the communication and interaction between enterprises and the public, aiming at establishing and maintaining the image and reputation of the company and increasing the public's trust and goodwill towards the enterprise.

HR is the abbreviation of human resources, which refers to the human resources department in enterprise management and operation, and is mainly responsible for the recruitment, training, salary and welfare of human resources.

Soft text refers to soft text advertising copy, which is a means of publicity and promotion through words. Compared with hard advertisements, soft articles are more hidden and more easily accepted by the audience. Soft articles often use literary methods to arouse readers' interest by telling stories and expressing their feelings, so as to achieve the purpose of publicity.