1. Fighting alone: describes a person struggling without the help of others. Metaphor is to face difficulties alone and persevere.
2. Independence: It means that individuals have the right to make decisions and actions independently without external interference. Solitude here refers to making decisions and actions independently without the help of others.
3. Self-reliance: It means solving problems by yourself, without relying on others' help. Solitude here refers to solving problems independently without the help of others.
4. Independence: refers to taking responsibility for a certain job or task alone and having the ability to finish the work independently. Solitude here means taking responsibility independently without the help of others.
5. Independent thinking: refers to thinking and analyzing problems independently without the guidance or intervention of others. Solitude here refers to independent thinking and analysis without the help of others.
6. Walking alone: refers to a person acting or moving alone without the company of others. Being alone here means acting alone, without the company of others.
7. Go it alone: It means doing things according to your own ideas, regardless of other people's opinions or suggestions. Solitude here means making decisions and actions independently, without the advice of others.
These idioms all mean that a person acts independently or does things alone, without relying on other people's help. They can be used to describe individual independence, autonomy and perseverance. At the same time, these idioms can also be used to emphasize that a person needs to think and solve problems independently in the face of difficulties and challenges in order to improve his ability and quality.