Science study

Feel-good protection

作者：TEENS

You feel an itch (痒) in your nose. It tickles (发痒), like ants are climbing on your skin. With a sudden blast (爆发) of noise, the itch disappears. Instead, you feel relaxed and happy. That’s the power of a sneeze.

点击阅读全文

对本期电子报订户、有效期内的VIP教师会员和本学期高一尊享卡用户，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。