| Resource | Format | Best For | Cost | |----------|--------|----------|------| | | Full PDF textbooks + audio | Grammar, reading, writing | ~$30 | | ESL Fast (eslfast.com) | Free web-based scripts + audio | Reading while listening | Free | | LibriVox + Project Gutenberg | Free public domain audiobooks + matching ebooks | Extensive reading/listening | Free | | Pimsleur Official App (30-day trial) | Audio + digital booklet PDF | Speaking & pronunciation | Free trial, then $20/mo |
| Format | Content | Is it a PDF? | |--------|---------|---------------| | Audio Lessons (MP3 or streaming) | 30 core lessons + review lessons | No | | (PDF) | 10-20 pages of phonics, simple written sentences, and cultural notes | Yes, but limited | | User’s Guide (PDF) | Instructions on how to use the method | Yes | | Premium app access | Flashcards, voice recognition, quick matches | No |
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CAD求助！！！谢谢各位！！！问题1：怎样在一张图中使不同的点使用各自不同的点样式呢？如下图： 我总是改变其中一个点的点样式，其他的点都一起变了。问题2：要想对圆进行全部的偏移，如下图，应该怎么办？
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