The idea is for students to learn about the human milestones from birth to the aging.
这个想法是为了让学生了解从出生到衰老的人类里程碑。
-- Jane Wagner 简·瓦格纳
The idea is for students to learn about the human milestones from birth to the aging.
这个想法是为了让学生了解从出生到衰老的人类里程碑。
-- Jane Wagner 简·瓦格纳