My name is Dan Cohen, and I am academic, as he said. 我叫丹·科恩，我是个学者，就像主持人介绍的。 And what that means is that I argue. 这意味着我经常需要辩论。 It's an important part of my life, and I like to argue. 这是我生命中的重要组成部分，
Sandstorm 史瑶瑶，13岁，甘肃 Good afternoon, ladies and gentlemen, Today I’m going to talk about sandstorm. Sandstorm is a kind of bad weather witch is becoming increasingly common in Northwestern China
"I wish I'd let myself be happier." “我希望我能让自己过得跟快乐些。” Well, here I can't help but think of the groundbreaking clinical trials recently conducted at East Carolina University 的确，我在这里还是帮不上忙，但是想想近来被东卡罗来纳州
