The day will feature displays, family activities and presentations by scientists from the museum's Center for Earth and Planetary Studies, the museum of Natural History and NASA.
这一天里将会有特色展示，家庭活动与来自博物馆地球与行星研究中心，美国自然历史博物馆与NASA的科学家带来的演讲。
The day will feature displays, family activities and presentations by scientists from the museum's Center for Earth and Planetary Studies, the museum of Natural History and NASA.
这一天里将会有特色展示，家庭活动与来自博物馆地球与行星研究中心，美国自然历史博物馆与NASA的科学家带来的演讲。
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