책 Four Corners 4 - 7단원 D

at a time in the past, often used to introduce a fairy tale or fictional story

아주 옛날

appearing mechanical or lacking emotion

로봇식

a chair with wheels that is designed particularly for the use of disabled persons

바퀴 달린 의자

a state of being free from pain, worry, or other unpleasant feelings

위로

very important or necessary for a particular purpose or situation

필수적인

books, movies, etc. about imaginary things based on science

공상 과학 소설

to have a real presence in the world, either physically or conceptually

있다

the latest or most advanced level of technology, design, or knowledge in a particular field

최첨단

an old person, especially someone who is retired

노인 및 은퇴 시민

to guess the value, number, quantity, size, etc. of something without exact calculation

무언가를 추정하다

to become less in amount, size, or degree

덜 해지고

all the individuals who work in a particular company, industry, country, etc.

인력

a state where there is not enough of something or someone

부족

a period of time in which someone no longer works due to old age

퇴직 기간

a failure in the progress or effectiveness of a relationship or system

어떤 것의 확립된 질서가 붕괴되는 것

an order, particularly given by someone in a position of authority

명령 (군)

a way of communicating emotions or attitudes through movements and positions of the face, such as smiling, frowning, or raising eyebrows

표정

showing signs of future success or potential

유망한