"Da Dang" is an idiom that refers to the widespread popularity of a certain thought, behavior, or fashion in society, and is generally accepted and recognized by people. The semantics of this idiom are more neutral, with no obvious positive or derogatory connotations.
In terms of the meaning of the word, "popular" means that a certain thought, behavior or fashion is widely popular in society and is generally accepted and recognized by people. The idiom itself does not express positive or negative emotional overtones, but only objectively describes the popularity of a certain phenomenon or behavior in society.
However, in practical use, the idiom "big hit" can have a certain emotional overtone. For example, when people use this idiom to describe a certain undesirable phenomenon or behavior, it may have a certain derogatory or critical connotation. And when people use this idiom to describe a positive phenomenon or behavior, it may have a certain positive or positive connotation.
Therefore, the idiom "big hit" itself is neutral, with no obvious positive or derogatory connotations. In practice, it is necessary to understand its emotional color according to the specific context and situation.