What skills will you not be unfamiliar and forget even if you don't use them for a long time after you master them?
Language. I'm not sure if I have the talent for this. For example, one of my hobbies is to imitate the voices of people in local dialects and TV dramas, which will bring infinite joy to my roommates. My dear roommates say that I learn from Queen Zhen Xuan. By the way, I imitate Song Dandan. . . In addition, there are languages other than Chinese, that is, even if you don't use them for a long time, occasionally hear a few vocabulary sentences and read a foreign article, the lexicon in your mind is still working. It's easy to pick it up even if you forget it.