이탈리아 샌드위치
His article deals with education. He says wealthier people in the United States, mostly those with a college education, do everything they can to make sure their children become wealthy and well-educated.

더 나은 옷
American English has many expressions related to clothes. Two of the more common ones are: “Dress for the job you want, not for the job you have”; and, simply, “Dress for success.”

자면서 배운다
We humans spend about one-third of our lives asleep. This may sound like a lot of time, but it is not wasted.

사해
The sea is on the border of Israel and Jordan. It is the lowest place on Earth meaning its surface is farther below sea level than any other place.

밤샘 공부
Sleep expert David Earnest often tells college students that a good night’s sleep is important for academic success. Not that they listen to him.

근육이 발음을 기억한다
When you repeat a physical action many times, your brain develops permanent memory for how to do it.

물과 영어에서 위험한 동물
Sharks are large, usually gray saltwater fish. Unlike other creatures, they have a skeleton made of cartilage, not bones.

데드라인
On the last Monday in May, people in the United States celebrate Memorial Day. This federal holiday honors members of the American military who died in war.

브로드웨이 무대 감독
The job requires them to spend a lot of time looking at video camera images. They also usually wear a headset that lets them hear and be heard by members of the cast and crew.

더운 날씨에는 날기 어려운 비행기
It is sometimes more difficult to get airplanes off the ground in extremely hot weather. But the problem is not the temperature itself or the humidity. It is the air density that can get in the way.