主办方 NSDA China National Speech & Debate Association，即全美演讲与辩论联盟，是美国历史最悠久、规模最大的中学演讲与辩论荣誉组织，也是世界演讲与辩论领域最大的专业教练会员组织。自1925年成立以来，NSDA累计拥有超过150万学生会员，活动范围遍及全美50个州。仅2016年，就有逾18万中学生会员参加了NSDA举办的各类活动，学习成为批判性思

Open your mouth as wide as possible until it's square. You get a mouth. 把你的嘴张得越大越好，直到变成正方形。这就是一个“口”字。 This is a person going for a walk. Person. 这是一个人正在散步。“人”字。 If the shape of the fire is a person wi

REMARKS BY THE PRESIDENT ON CLEAN ENERGY Trinity Structural Towers Manufacturing Plant Newton, Iowa 12:52 P.M. CDT THE PRESIDENT: Thank you so much. Thank you, Rich, for the great introduction. Thank

Now within that framework, we can obviously experience regret about a lot of different things. 在这个模式下，我们显然常常后悔很多事情。 This session today is about behavioral economics. And most of what we know about reg

Hello, everybody. It is a pleasure to welcome all of you to the White House. I'm going to be very brief, because I know you're all looking forward to heading down the street a little bit later for a w