书籍 Four Corners 4 - 第 7 单元 D 课

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

appearing mechanical or lacking emotion

机械的, 机器人似的

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

轮椅, 带轮椅

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

舒适, 安慰

very necessary for a particular purpose or situation

必要的, 不可或缺的

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

科幻

to have actual presence or reality, even if no one is thinking about it or noticing it

存在, 有

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

an old person, especially someone who is retired

老年人, 退休老人

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

估计, 估算

to become less in amount, size, or degree

减少, 降低

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

劳动力, 员工

a lack of something needed, such as supplies, resources, or people

短缺, 缺乏

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

黄金岁月, 退休生活

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

崩溃, 瓦解

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

命令, 指令

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

面部表情, 表情

showing signs of future success or potential

有前途的, 有希望的