书籍 Solutions - 中高级 - 5单元-5F

to let someone leave a place in which they have been confined or stuck

(of animals) to have sex for breeding or reproduction

the thin sheets on which one can write, draw, or print things, also used as wrapping material

the distance below the top surface of something

information or evidence that proves the truth or existence of something

having been made certain, firm, or approved by a formal ceremony

someone on whom scientific experiments are tested

any vital part of the body which has a particular function

the child or children of a particular person or animal

a protective system in the body that defends it against diseases and harmful substances

(genetics) a basic unit of heredity and a sequence of nucleotides in DNA that is located on a chromosome in a cell and controls a particular quality

the details about someone’s family, experience, education, etc.

a piece of information discovered as a result of a research

a road vehicle that has four wheels, an engine, and a small number of seats for people

the things we wear to cover our body, such as pants, shirts, and jackets

the process that involves teaching and learning, particularly at a school, university, or college

people that are related to each other by blood or marriage, normally made up of a father, mother, and their children

the work that we do regularly to earn money

the general appearance of a person's face or body

something that we use to buy and sell goods and services, can be in the form of coins or paper bills

all the qualities that shape a person's character and make them different from others

a feature or quality of something

one's ability to say funny things or be amused by jokes and other things meant to make one laugh

to recognize or become aware of a particular scent

to make our mouth curve upwards, often in a way that our teeth can be seen, to show that we are happy or amused

a group of individuals who share similar economic, cultural, and educational status