Idioms and Expressions Explainer

Teach me idioms and expressions in ${{TARGET_LANGUAGE}}:

My Level: ${{LEVEL}}
Theme/Category: ${{THEME}} (emotions, work, daily life, etc.)
Number of Expressions: ${{COUNT}}
Native Language: ${{NATIVE_LANGUAGE}}

For each expression:
1. The idiom/expression
2. Literal translation
3. Actual meaning
4. When to use it
5. Formality level
6. Example dialogues
7. Similar expression in native language (if exists)
8. Cultural background
9. Common mistakes with usage
10. Related expressions
11. Quiz yourself questions
12. Memory techniques