바보
In the United States April 1 is a day when you need to be a little careful. Why? It is April Fool’s Day so someone might play a practical joke on you -- a harmless trick for fun.

호랑이도 제 말 하면 온다더니
I haven’t seen Luis for weeks. Look, here comes Luis right now.

결혼하다
Hey, your wedding is coming up. You must be so excited to tie the knot with Lily.

하수구에 빠진 소년 구하기
California officials are praising workers for rescuing a 13-year-old boy who fell into a river of sewage in Los Angeles.

나무가 철보다 강할 수 있나?
Researchers say they have created a new super-material in the laboratory. They say it is stronger, lighter and costs less than steel.

영작을 위한 개념도
English learners face a common problem: their writing often lacks clarity and cohesion. That is according to Babi Kruchin and Alan Kennedy who teach at the American Language Program at Columbia University.

평면 모니터
Consider the rapidly changing world of electronics. You can buy a giant television set, no thicker than a framed oil painting, and hang it on your wall.

꾹 참다
Mike: Yes it was long~! I was going to say something about that, but I just decided to sit through the meeting and bite my tongue.

피부
Today we explore the human body. Specifically, we take a tour of our largest organ: the skin. Skin is not only large; it is important.

거칠게 장난치며 놀다
You look exhausted. Was babysitting your nephews that hard?

막다른 길
There were still big, central streets - often wide boulevards. But branching off were nodules called cul-de-sacs, or streets that dead-ended into little traffic circles.

어메리칸 드림
Each individual may define the American dream differently. But the general idea is that a person in the United States has the freedom to carry out his or her goals.

추울 때는 COLD를 생각하세요
Winter in many places means ice skating, sledding and snowball fights. But unless someone is prepared, outdoor fun can also mean frostbite and hypothermia. Today we talk about how to stay warm, dry and safe.

할 일이 산더미이다
Jen: You’re here with your friends and it seems like you have a really full plate on you today?

평지풍파를 일으키다
You have probably seen a boat before. Watching one move through the water can be really fun.

느려도 꾸준히 하면 결국 이긴다
Oh no! Look at Seth. He is running so much slower than others. He is definitely not going to win the race.

무척 좋아하다
Jen: Caroline, you were telling me that you got your niece, or you got some necklaces for your niece last year.

촉각을 가진 로봇
A human hand can find a tool without looking, or put down a glass of water without spilling. But for robots, these actions are harder than they seem.

나도 끼워 줘
Do you want to play tennis with us tomorrow? So far, it’s me, Roger and Sherry. I would love to! Count me in.

배터리 금속 재활용
Their hope is to take advantage of an expected shortage of materials, such as cobalt and lithium, when sales of electric cars start rising.