일주일에 한두 번
Jen: Hi Rebecca, I’m walking with you…I’m power walking with you. Do you power walk and jog around the National Mall often?

미국에서 집을 크게 짓는 이유
Many Americans like the idea of big, open spaces. So it might not be surprising that houses built in the United States are among the largest worldwide.

못하겠다고 말씀드렸어
Hey, I heard that you’re the first one in the class to present your project. I know. I’m dreading it. I tried talking my way out of this by speaking to the professor but it didn’t work. He said I have to present first no matter what.

순간적으로 판단하다
Congratulations on your new job! How is it so far? I like it. It keeps me thinking on my feet.

바다 생물
Today, we go back into the ocean to explore expressions involving other sea creatures.

스마트
Today, we will talk about the word "smart." Like many words, "smart" has lots of different meanings, depending on how and when you use it.

무인자동차 기술
Almost every day, we hear about a new development in the world of driverless technology. But how will this technology change our lives when cars no longer need humans to drive them?

달 정착지
The European Space Agency or ESA has plans to build a permanent base on the moon. The Space Station already permanently orbits the earth.

하얀 모래사막
One of the world's great natural wonders is in the state of New Mexico, in the American Southwest. Nature has created huge moving hills of pure white sand. These sand dunes cover more than seventy-thousand hectares of desert.

오랜만이네
Erica: How are you? I haven't seen you for a few years! Robert: I'm doing great! It's been ages since we've talked, hasn't it?

3D 프린터
When we print something, a flat page comes to mind. For example, you might use a photocopier. Photocopiers print in two dimensions. Now, imagine how this would work for three dimensions.

하이파이브 하자!
Jason! Congratulations on making the soccer team! Give me five! Thanks! I am so happy about it! We have our first game next weekend.

당뇨에 좋은 브로콜리
Researchers have discovered that a compound found in a common vegetable might help treat diabetes.

잠수 타다
Alice! I haven’t seen you in such a long time. You’ve been MIA for a while. I know. I’ve been MIA. I’ve been studying for the real estate license test.

잡담
Small talk. Chitchat. These are the short conversations we have at parties, while we wait in line at the store, at family events or work.

그루터기
There are many stories of early settlers of America: the people who moved westward and opened up new territory. Many of these settlers were farmers who wanted a new home, a piece of land, some crops and cattle.

아침 일찍
Jen: You guys woke up bright and early today to get here? Sam: Yup, a 3 hour ride, so...

카세트 테이프
Recently, the New York Times ran an obituary, but not about a person. The paper said good-bye to an old friend: the audio cassette tape.

속아 넘어가다
I can’t believe this! What’s wrong? I fell for what the salesman was telling me and bought an overpriced computer.

손님이 오기로 되어 있어
Wow! Your house looks very clean and tidy. Are you expecting company? Yes, I am having company over my house tonight. A guest from out of town is visiting so that’s why I cleaned the house.