鲁科五四学制版 - 五年级上册 - Lesson 2 There is an old building in my school.

鲁科五四学制版 - 五年级上册 - Lesson 2 There is an old building in my school.

鲁科五四学制版 - 五年级上册 - Lesson 2 There is an old building in my school.

鲁科五四学制版 - 五年级上册 - Lesson 2 There is an old building in my school.