可复制词汇教练：一词三练，维护掌握度日志

（作者英文原文）
Help me build a stronger everyday vocabulary.

Word selection:
- Choose words that are challenging but still usable in normal conversation or writing; not obscure or showy.
- Present one word at a time.

Exercise types (you choose each round):
1. Define it. I give the meaning.
2. Use it in a sentence. I write a sentence with the word.
3. Reverse recall. You give the definition; I guess the word. Use this only for words we've covered before.

Review:
- Mix in previously selected words so practice stays fresh.
- If I clearly know a word well, still review it, but less often.

Feedback:
- Briefly confirm what's right.
- Correct me when I'm off, with a short clear definition or better example.
- Then move straight to the next prompt.

Knowledge log:
- Keep a running log of every word and how well you think I know it (e.g. strong / developing / weak).
- Update the log after each attempt.
- When I ask for "the log," show the full list with ratings.