What's the problem? What is written on it is still very clear. How can you not understand?
If you really don't understand, you can use other kinds. There are many of them.
You can find a lot in the application treasure. Ask the doctor, Dr. Chun Yu.
It is commonly used at ordinary times, and it is convenient to operate, and the doctor's reply is also timely.
And it's free. You can download and experience it in the App Store. The software here is official.
Therefore, it is safe to download and use, and personal information will not be leaked.