speaker addressing seated audience through headset microphone during business conference. participants listening to presentation reflect shared learning, communication, employee engagement. - 知識就是力量 個影片檔及 b 捲影像00:16
presenter gesturing with hands while explaining ideas during business conference. public speaking connects technology education with knowledge sharing, communication, professional learning. - 知識就是力量 個影片檔及 b 捲影像00:10
teenage boy studying a wind turbine model and renewable energy technology in a library - 知識就是力量 個影片檔及 b 捲影像00:12
teenage boy studying a wind turbine model and renewable energy technology in a library - 知識就是力量 個影片檔及 b 捲影像00:12
teenage boy studying a wind turbine model and renewable energy technology in a library - 知識就是力量 個影片檔及 b 捲影像00:06
teenage boy studying a wind turbine model and renewable energy technology in a library - 知識就是力量 個影片檔及 b 捲影像00:08
focused teenage boy and girl building wind power technology model for science class - 知識就是力量 個影片檔及 b 捲影像00:18
teenage boy studying a wind turbine model and renewable energy technology in a library - 知識就是力量 個影片檔及 b 捲影像00:12
focused teenage boy and girl building wind power technology model for science class - 知識就是力量 個影片檔及 b 捲影像00:22
teenage boy studying a wind turbine model and renewable energy technology in a library - 知識就是力量 個影片檔及 b 捲影像00:06
focused teenage boy and girl building wind power technology model for science class - 知識就是力量 個影片檔及 b 捲影像00:13
teenage boy studying a wind turbine model and renewable energy technology in a library - 知識就是力量 個影片檔及 b 捲影像00:13
teenage boy studying a wind turbine model and renewable energy technology in a library - 知識就是力量 個影片檔及 b 捲影像00:13
teenage boy studying a wind turbine model and renewable energy technology in a library - 知識就是力量 個影片檔及 b 捲影像00:13
teenage boy studying a wind turbine model and renewable energy technology in a library - 知識就是力量 個影片檔及 b 捲影像00:16
focused teenage boy and girl building wind power technology model for science class - 知識就是力量 個影片檔及 b 捲影像00:18
teenage boy studying a wind turbine model and renewable energy technology in a library - 知識就是力量 個影片檔及 b 捲影像00:11
relaxed young man standing in room balcony and reading a book while enjoying mountain view. - 知識就是力量 個影片檔及 b 捲影像00:12
relaxed young man standing in room balcony and reading a book while enjoying mountain view. - 知識就是力量 個影片檔及 b 捲影像00:11
relaxed young man standing in room balcony and reading a book while enjoying mountain view. - 知識就是力量 個影片檔及 b 捲影像00:14
attentive african american elementary schoolgirl listening and learning during classroom lesson in usa - 知識就是力量 個影片檔及 b 捲影像00:07
focused elementary schoolgirl writing in notebook while learning and developing creativity in classroom - 知識就是力量 個影片檔及 b 捲影像00:05
cheerful schoolboy with glasses smiling during classroom learning activity at elementary school - 知識就是力量 個影片檔及 b 捲影像00:06
focused schoolboy with glasses writing in notebook during learning activity in elementary classroom - 知識就是力量 個影片檔及 b 捲影像00:07
attentive elementary schoolboy with glasses listening thoughtfully during classroom learning session - 知識就是力量 個影片檔及 b 捲影像00:05
thoughtful elementary schoolboy with glasses listening and looking up during classroom learning activity - 知識就是力量 個影片檔及 b 捲影像00:05
focused schoolboy writing in notebook while studying independently in elementary classroom - 知識就是力量 個影片檔及 b 捲影像00:11
