young man student presenting a online school science project in the classroom - 科學博覽會 個影片檔及 b 捲影像00:43
teenage students presenting a school science online project in the classroom - 科學博覽會 個影片檔及 b 捲影像00:30
teenage students applauding colleagues after a presentation in the classroom - using a face mask - 科學博覽會 個影片檔及 b 捲影像00:05
teenage students presenting a school science online project in the classroom - 科學博覽會 個影片檔及 b 捲影像00:37
students doing a presentation about volcanoes in the classroom - using a face mask - 科學博覽會 個影片檔及 b 捲影像00:10
students doing an online presentation about the solar system in the classroom - point of view - 科學博覽會 個影片檔及 b 捲影像00:28
students doing a presentation about volcanoes in the classroom - using a face mask - 科學博覽會 個影片檔及 b 捲影像00:05
students doing a presentation about volcanoes in the classroom - using a face mask - 科學博覽會 個影片檔及 b 捲影像00:06
students doing an online presentation about the solar system in the classroom - 科學博覽會 個影片檔及 b 捲影像01:05學生
student doing a presentation about the solar system to the classroom at school - 科學博覽會 個影片檔及 b 捲影像00:09
student doing a presentation about the solar system to the classroom at school - 科學博覽會 個影片檔及 b 捲影像00:06
student doing a presentation about the solar system to the classroom at school - 科學博覽會 個影片檔及 b 捲影像00:05
student doing a presentation about the solar system to the classroom at school - 科學博覽會 個影片檔及 b 捲影像00:05
student doing a presentation about the solar system to the classroom at school - 科學博覽會 個影片檔及 b 捲影像00:16
students doing a presentation about volcanoes in the classroom - using a face mask - 科學博覽會 個影片檔及 b 捲影像00:08
ok. here we go joey hudy: so you just press this button right here and... i'll probably angle this way so it doesn't hit that person. barack obama:... - 科學博覽會 個影片檔及 b 捲影像00:31
handheld shot of confident boy explaining friends over robot during science workshop - 科學博覽會 個影片檔及 b 捲影像00:11
