TED演讲:一个能防止人群踩踏事件的救生发明(3)
So we built Ashioto, meaning "footstep" in Japanese, 所以我们构建了“Ashioto”系统,在日语中意思是“脚步声”, as it consists of a portable mat which has pressure sensors which can count the number of people walking on it, 这种
Ted英语演讲:知识就是力量:Ken Robinson:认为学校扼杀创造力
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Ted英语演讲:尖端医生:本·高达克:与坏科学做斗争
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TED演讲:美国人在健康问题上的共识是什么(7)
So I ask, if you are a health care executive: 所以我问,如果你是医疗保健主管: Do you know how many of your patients run out of food or struggle to pay the rent at the end of the month? 你知道你有多少病人缺乏食物或者月底付不起租金吗? Is th
奥巴马演讲 共同来悼念911事件
In just two weeks, we’ll come together, as a nation, to mark the 10th anniversary of the September 11th attacks. We’ll remember the innocent lives we lost. We’ll stand with the famil