题目：
多选题
Ways to present and explain vocabulary:
- A. Translate and exemplify，especially with technical words or words with abstract meaning;
- B. Use lexical sets
- C. Use word formation rules and common affixes
- D. Mime or act to show meanings
- E. Use real objects to show meanings
- F. Draw pictures，diagrams and maps to show meanings or connection of meanings
- G. Use synonyms or antonyms to explain meanings
答案：
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