Excuse me, in terms of making friends, why is the current software gradually changing? In general, this, er, communication software is gradually built on the basis of spending money and so on. Real educational software is not necessarily the kind of serious software, so I should choose to sigh when making friends, such as Mo Mo, although it costs some money, the person you teach this thing is not necessarily a good person, so I personally still think that these are all dating software, and I tend to be Mo Mo, and I can find one by groping. Never mind whether those are good or bad, or just pull them out. As an individual. To be an individual, you must enjoy worldly desires and don't have to worry about how the software will drop. Some software is like this. How many educational software will be good? So, just choose a software to use, don't think so much.