If a teacher is invited to give a speech, it is usually calculated by the day, which is 6 hours a day. Different teachers have different prices.

If it is only the basic operation, you can also find someone who is more proficient in the company. There is no need to hire a teacher if you want to learn advanced courses. More cost-effective.

Shortcut keys are forgotten when they are said, and can only be remembered if they are used frequently.