Being unconventional means that the metaphor is unconventional and original. The related explanations are as follows:

1. The word "stereotyped" in this idiom refers to the old model, framework or traditional practice. And "sticking to the old pattern" means that you can think, innovate and create independently without sticking to traditional practices or models. This practice is not bound by tradition, and it can open up ideas and be brave in exploration, thus creating unique results.

2. In artistic creation, if an artist can stick to the old pattern and create a unique artistic style or form, then his works will be more distinctive and attractive. Similarly, in academic research, if a scholar can stick to the old pattern and put forward new theories or assumptions, then his research results will be more valuable and influential.

3. Sticking to the old pattern is a positive attitude and spirit, which encourages people to be brave in innovation, think independently and not stick to traditions and patterns, thus creating more valuable and meaningful results. This attitude and spirit is still very important in modern society, which can promote social progress and development and improve people's productivity and creativity.

Skills to explain the meaning of idioms

1. Understand the background and source of idioms: Many idioms have their origins, such as historical events, allusions, famous sayings and so on. Knowing these background information can help us better understand the meaning and usage of idioms. Pay attention to the context of idioms: the meaning of idioms is often related to the context in which they are used. In different contexts, the same idiom may have different meanings.

2. Pay attention to metaphors and extended meanings of idioms: Many idioms express their meanings through metaphors or extended meanings. Therefore, when explaining these idioms, we need to pay attention to their metaphors and extended meanings, rather than just explaining their literal meanings. Pay attention to the commendatory and derogatory colors of idioms: Idioms often have certain emotional colors, such as commendatory, derogatory or neutral.

3. Emphasize the grammatical structure of idioms: Some idioms have special structures, such as juxtaposition, deviation, verb-object and so on. When explaining these idioms, we need to emphasize their grammatical structure in order to better understand their meaning and usage. Illustrating with examples: Illustrating the usage of idioms through examples can help us better understand their meanings.