文章列表

• 1.托福听力短文 I-01-3
• (man) Located at the NASA Research Center in Iowa is a 5,000-gallon vat of water, and inside the tank is an underwater treadmill designed by Dava Newm...
• 2.托福听力短文 I-01-2
• (woman) I hope you've all finished reading the assigned chapter on insurance-so that you're prepared for our discussion today. But, before we start, I...
• 3.托福听力短文 I-01-1
• (man) Community service is an important component of education here at our university. We encourage all students to volunteer for at least one communi...