348
운좋은 오리
This story is about a brown female Canadian duck that weighs only four hundred fifty grams. The duck had flown to the southern state of Florida for the winter.
346
스타벅스
If you are in any major city in America, the chances are high that you are not far from a Starbucks. In fact, you might be very close to several of these coffee stores.
345
아기의 지능과 조기 교육
Not long ago, many people believed that babies only wanted food and to be kept warm and dry. Some people thought babies were not able to learn things until they were five or six months old.
343
햄버거의 원조는?
Many restaurants in the United States say hamburgers are their most popular food. But no one really seems to know who made the first one.
337
트랜스 지방
New York City wants to fight fat. The Board of Health has passed a ban on trans fats in all restaurants.
335
애견 조련사
Americans own about seventy-three million dogs. Many people have problems training their animals. Some are turning to dog expert Cesar Millan.
334
보석 세공
Ancient peoples who lived near the ocean used the shells of sea creatures to make jewelry. Other ancient peoples used materials like small colored rocks and animal bones and teeth.
332

Snow is a form of frozen water. It contains many groups of tiny ice particles called snow crystals. These crystals grow from water particles in cold clouds.
329
시어스 타워
The Sears Tower in Chicago, Illinois, is the tallest office building in the United States. It was built between nineteen seventy and nineteen seventy-four. For more than twenty years, it was the tallest building in the world.
327
가격할인 세일
When a store sells goods or services at a cost lower than usual, it is called a sale. Sales last for a limited time. Then the cost is returned to its usual amount.