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. 很適合中學生。
2. 質量好,體積小,省電,容易學習和操作。
3. 性能高,耐用,經濟,實用,適用于中學生。