姬莎在她的三明治上发现了霉菌，于是，全班同学在弗瑞斯老师的带领下开始了一次微生物世界之旅。

When Keesha discovers mold on her sandwich, the class takes off on a tour of the mini microbe world, and they learn first hand that these little creatures can have HUGE effects.

youdao

因此，我希望全班同学出现，使我们的教师带领班级，在高地！

So I hope that the whole class to emerge, so that our teachers to lead classes in the heights!

youdao

因此，我希望全班同学出现，使我们的教师带领班级，在高地！

So I hope that the whole class to emerge, so that our teachers to lead classes in the heights!

youdao