Stepping Up
Cool inventions
COOL inventions (发明) bring us an easier life. Here are some interesting ones. What are they? What can they do? Let’s check them out.
This is a boat. It is very easy to carry (携带). When you are not using it, you can fold (折叠) it into a small bag.
- 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。