Windows of Knowledge
What makes a number lucky?
幸运数字能为你带来好运吗？
DO you have a lucky number? What is it? Many people have a special number. They hope it can bring them good luck.
- 对本期电子报订户、有效期内的VIP教师会员和本学期初一尊享卡用户，我们开放所有内容：
- 如果您拥有以上权限，请点这里登录；
- 订阅电子报，请点这里；
- 激活VIP教师卡，请点这里；
- 激活21英语尊享卡，请点这里。
