디지털 교과서
Association spokesman Charles Schmidt says electronic textbooks now represent just two to three percent of sales. But he says that is expected to reach ten to fifteen percent by two thousand twelve.

쉰 목소리
If using your voice is difficult, then you know what dysphonia is. The more common name for this disorder is hoarseness.

에어 기타
Anyone can try to play the guitar. But it takes a special talent to play an invisible guitar.

전자책
These days, instead of turning paper pages, many readers reach for handheld devices. These electronic readers not only store books to show on a screen, they can also read them out loud.

에너지 드링크
You could fill a store with all the energy drinks now available. They promise to make people feel more energetic and think more clearly.

향신료
People have used herbs and spices in food for thousands of years. Some of these substances are valued for their sharp taste. Others are chosen for their smell.

채식주의자
Some vegetarians do not eat any meat products or any food made from animal labor, including milk products, eggs and honey. This kind of diet is called a vegan diet.

에세이 공장
Many can be found on the Internet. They sell newly written papers on many subjects. The cost depends on the difficulty of the subject and how soon the paper is needed.

백악관 야채밭
The vegetables and fruit will help provide meals for the Obama family, White House workers and guests. The produce will also go to a nearby center that provides food for homeless people.

세계에서 가장 싼 차
The small four-door car is about three meters long. It will cost one hundred thousand Indian rupees, or two thousand dollars. That is about half the price of similar cars offered by the nearest competitor.