1. Suitable for middle school students.
2. high quality, compact size and it's also energy—saving, easy to learn and easy to operate.
3. efficient and endurable, economical and practical for middle school students.
1. 很适合中学生。
2. 质量好,体积小,省电,容易学习和操作。
3. 性能高,耐用,经济,实用,适用于中学生。