What does a comment mean when it is appropriate, but not when, when it is not appropriate, but when it is appropriate? It means more.

This sentence is confusing to read, so if you add a sentence to read, "When it's appropriate, it's not, and when it's inappropriate, it's." It's still confusing. There is a source for this remark: many years ago, a lecturer in a normal college criticized a classmate for abusing function words and quoted a joke. The scene in class that year is still vivid in my mind, and the laughter of my classmates is still in my ears. The lecturer told us that Mr. Lao She, the language master, always advocated using function words sparingly and not using them when possible. Chinese pays attention to accuracy, clarity and vividness, and avoid being sloppy and overlapping.

Thinking of the fact that some of my friends have been talking about "then" recently, I feel that the words of the lecturer and the teacher still have practical educational significance. As some netizens said, it is harmless for a child with a babbling mouth to add a few more "thens", which makes him feel childish and cute. However, uncles, aunts, celebrities and hosts all follow the same rules for "thens", not to mention adding noise and miscellaneous things for the time being. It’s hard to escape the suspicion of pretending to be cool. Mantra reflects a person's thinking blockage. Although it is not serious, it is a speech disorder after all. It is like smoking. It is better to quit!