벽에도 귀가 있다
Have you ever listened to a private conversation? Maybe you were standing by a door or in a hallway and you heard people talking about someone else you know.

함부로 대하다
Man! My boss is walking all over me and I’m really offended. You should definitely say something to him -- don’t let your boss walk all over you.

약물 과다복용
More than two million Americans have some sort of physical dependence on opioids. Opioids are a type of painkiller that are legally prescribed to many people.

사해
The Dead Sea on the border between Israel and Jordan is slowly shrinking and sinking, losing a meter of depth each year.

카우보이
Experts say that men came from all over the United States to work as cowboys in the West. Cowboys were excellent horse riders. They trained wild horses. They used rope to catch and tie runaway animals.

큰 의미를 가진다
Well, besides being the first man to step on the moon, we’re from Beaver County where Cape Canaveral is so he means an awful lot to us.

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?

드론 연구
Experts say one of the most important technologies of the future is drones. Drones are flying devices with no pilot.

기억이 나지 않는다
Susan: I can’t believe you don’t remember that. Come on. Amy: I know. I know. I’ve completely drawn a blank.

차가운
Cold weather has a great effect on how our minds and our bodies work. Perhaps that is why we have so many expressions that combine the word “cold” with body parts.

설득하여 하게 하다
Gary: I rode the mega bus from Atlanta to Knoxville and so I talked these guys into riding the mega bus.

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

승진하다
Ladders are made from two long pieces of wood, metal, or rope with a series of steps, called rungs, between them.

끝까지 견뎌봐
What’s wrong? Ugh! I don’t think I can continue to run my small business anymore. There are too many obstacles and I just want to give up.

의사 되기
People who want to become medical doctors often study large amounts of biology, chemistry and other science. Some students work for a year or two in a medical or research job...

파우와우
I want to study the modern powwow. 나는 현대, powwow에 대해 공부하고 싶습니다. I’ve never been to a powwow. 나는 powwow 행사에 한번도 가 본 적이 없습니다. What is powwow? Powwow가 뭔가요?

카카오와 초콜릿
Humans may have been enjoying cacao, the substance used to make chocolate, for much longer than experts had thought.

바닷가재
The lobster has long been a symbol of the northeastern U.S. state of Maine. But this spidery crustacean, which breeds in abundance in the Atlantic waters along the state's rocky coast, is more than a mere icon.

바비큐
Barbecue, or BBQ for short, is a style of cooking meat at a low temperature for a long time.

절박한 상황이다
Mike: Sorry. I’m at the end of my rope. Studying for this exam is killing me.