블랙홀
The human eye is unable to see black holes in space. But telescopes with special tools can help find black holes by seeing how they affect nearby stars.

다람쥐
In many parts of the United States, temperatures are falling. This change of season, from summer to autumn, gives Americans many things to watch.

휴가 보내기
Americans do many different things during their vacations. Some people stay at home and enjoy time with their families. They may go to a local swimming pool, zoo or museum.

서두를 필요 없어
Oh! My best friend just posted a picture of her engagement ring on Facebook! Look! Wow! That’s a fancy ring!

모터홈
America is full of vacation lodges . . . on wheels! They are known as motor homes - literally kitchens, living rooms, and beds on the move across America.

휴대폰 세정
Scientific studies have shown that the virus can live for two to three days on materials like plastic and stainless steel.

씹을 때 심한 통증이 있어요
Every time I eat or drink something hot or cold, I feel a momentary twinge. I also feel a sharp pain when I bite down. 뜨겁거나 찬 것을 먹을 때마다 이가 시큰거려요. 무엇인가를 씹을 때 심한 통증이 있고요..

이중언어 사용자가 더 똑똑한가?
In the early nineteen fifties, researchers found that people scored lower on intelligence tests if they spoke more than one language. Research in the sixties found the opposite. Bilingual people scored higher than monolinguals, people who speak only one language. So which is it?

보고 싶어 죽겠어
Rachel is finally done with her exchange student program in Italy! She’s coming back next weekend and I’m dying to see her.

개와 함께 독서를
In American English we have an expression: “A dog is a man's best friend.” A dog can also be a child’s best friend, especially if that child is having difficulty reading.

빙하에 갇힌 부부
The children of Marcelin and Francine Dumoulin of Switzerland finally might find out what happened to their parents 75 years ago.

책 만드는 사람들
For the book lovers who gathered at the university library for the exhibit opening, modern digital storage devices have little appeal.

한국 문화 캠프
Campers and teachers at Korean Culture Camp in St. Paul, Minnesota, start the day by saying “hello” in Korean. “Anyunghaseyo, Anyunghaseyo.”

스리라차 소스
Sriracha sauce now flavors many American-made products -- from popcorn to candy to beer. There are cookbooks explaining how to use the popular hot sauce.

아이 잘 키우기
Parents want their kids to be happy and successful. But some parents want their children to be more. They become controlling and hyperactive, trying to raise perfect kids...

날 과소평가 하지 마
Hey, are you sure you can prepare dinner for twelve guests this weekend? Yes, of course! Why would you doubt me?

시금석
Today we go back to school. We will talk about two terms from science class. Both are tests.

향신료
People have used herbs and spices in food for thousands of years. Some of these substances are valued for their sharp taste. Others are chosen for their smell.

헛소리야
Man! I think Jessica’s talk about the importance of helping the poor was full of baloney! All these years I’ve known her I have never seen her help the poor.

속어
Slang is a popular, less official and often very current form of language. It is an important part of a living language and is constantly changing as language changes.