자기의 입장을 고수하다
Jen: I know it’s hard but it’s worth it. So I’m digging in my heels, and I’m determined to help people in need.

유전자 교정
Scientists are debating how to limit their newly-discovered power to change genetic structure. Scientists already modify the genes of farm animals and agricultural plants to make them more productive or stronger.

짐바브웨의 상아
In some parts of Africa, elephant populations are in decline. That is mostly because hunters shoot the animals for their valuable ivory tusks.

인제야 왔네
It’s about time! I was wondering why you weren’t coming. What happened?

케첩
American ketchup is made from red tomatoes, vinegar, salt, sugar and other ingredients. It has both a sweet and salty taste.

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.

스마트 밴드
Simple bandages are easy to use. They cover and protect wounds, giving them time to heal. Now scientists say they are developing new kinds of bandages. They have begun adding small sensors to bandages. making them more sensitive.

교통 문제
Many big cities in the United States have serious traffic problems. Too many cars travel on the freeways to and from the city. This heavy traffic causes delays and lots of pollution from cars that are using their engines but not moving anywhere.

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.

포기하지 마
Popular culture has a strong influence on language. The expressions that come from movies and television shows can be especially powerful.

치즈 문화
The United States produces twenty-five percent of the world's cheese. A trade group, the Dairy Export Council, says producers made more than four million metric tons of it from cow's milk last year.

아주 친절한 사람이다
Rebecca: Yup! I hear she donated 500 cookies to be served at the Boy Scouts’ yearly meeting. Mike: She always did have a heart of gold.

인삼 전쟁
In the 1980s, Wisconsin reigned as the world's ginseng capital. Herbal medicine buffs prized the state's 'man roots' for their potency, and farmers raked in an average of $125 million a year.

의심의 여지가 없다
Jen: All right. Are you guys going to watch the upcoming games and are you excited? Lenny: Uh yeah! There is no doubt I will. I am a mild Miami Dolphins fan.

연모하다
February 14 is Valentine’s Day in the United States! For many people, it is a romantic day.

그만한 가치가 있는
Jen: Yes, $4,000. But it’s worth it if you really think about it…if you have parents who are older…

가슴이 덜컥 내려앉았어
Hey, did you hear the horrible news this morning about a drunk driver killing four people last night?

그것 참 안됐구나
Are you ready for our first soccer game next week. Actually, I’m not. I sprained my ankle yesterday so I will not be able to participate.

수준을 높이다
Our boss reminded us that to better serve our clients, we have to raise the bar and provide excellent quality service.

똑같은 소리만 늘어놓다
So, why is the expression “same old song and dance” not at all related to fun or happiness? That is the question we will answer today.