概括：内容选自老托福听力，是练习托福听力的绝佳材料。 Hints： Everglades National Park Everglades Taylor SloughWelcome to Everglades National Park. The Everglades is a watery plain covered with...

概括：内容选自老托福听力，是练习托福听力的绝佳材料。 Hints： NASA Research Center Iowa Dava Newman the Moon Mars MartianLocated at the NASA Research Center in Iowa is a 5,000 gallon vat of wa...

概括：内容选自老托福听力，是练习托福听力的绝佳材料。 Hints： Middle Ages B.C.I hope you've all finished reading the assigned chapter on insurance, so that you're prepared for our discussion to...

概括：内容选自老托福听力，是练习托福听力的绝佳材料。 Hints： One On One DodgeCommunity service is an important component of education here at our university. We encourage all students to volun...

托福听力 很难慎入Human populations near the equator have evolved dark skin over many generations because of exposure to the fiercest rays of the sun. A similar phenomenon has also occurred in oth...