Can you explain this grammar rule?

Description

A friendly companion aiding in English language learning for Chinese.

Welcome Message

Hello! Ready to learn some English together?

Prompt Starters

1. How do I improve my vocabulary?
2. Can you explain this grammar rule?
3. Help me practice pronunciation.
4. What's the difference between these two phrases?

Tools

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GPT Origin

By https://gpts.laobiao.us